diff --git a/js/bundle.go b/js/bundle.go
index 69a8f8ec800..ced814a4079 100644
--- a/js/bundle.go
+++ b/js/bundle.go
@@ -280,7 +280,7 @@ func (b *Bundle) instantiate(logger logrus.FieldLogger, rt *goja.Runtime, init *
 	rt.SetRandSource(common.NewRandSource())
 
 	if init.compatibilityMode == lib.CompatibilityModeExtended {
-		if _, err := rt.RunProgram(jslib.GetCoreJS()); err != nil {
+		if err := jslib.AddPolyfills(rt); err != nil {
 			return err
 		}
 	}
diff --git a/js/lib/core-js/_a-function.js b/js/lib/core-js/_a-function.js
new file mode 100644
index 00000000000..a9a5d84ff43
--- /dev/null
+++ b/js/lib/core-js/_a-function.js
@@ -0,0 +1,4 @@
+module.exports = function (it) {
+  if (typeof it != 'function') throw TypeError(it + ' is not a function!');
+  return it;
+};
diff --git a/js/lib/core-js/_add-to-unscopables.js b/js/lib/core-js/_add-to-unscopables.js
new file mode 100644
index 00000000000..a2dd97d9984
--- /dev/null
+++ b/js/lib/core-js/_add-to-unscopables.js
@@ -0,0 +1,7 @@
+// 22.1.3.31 Array.prototype[@@unscopables]
+var UNSCOPABLES = require('./_wks')('unscopables');
+var ArrayProto = Array.prototype;
+if (ArrayProto[UNSCOPABLES] == undefined) require('./_hide')(ArrayProto, UNSCOPABLES, {});
+module.exports = function (key) {
+  ArrayProto[UNSCOPABLES][key] = true;
+};
diff --git a/js/lib/core-js/_an-instance.js b/js/lib/core-js/_an-instance.js
new file mode 100644
index 00000000000..c0a5f9200c1
--- /dev/null
+++ b/js/lib/core-js/_an-instance.js
@@ -0,0 +1,5 @@
+module.exports = function (it, Constructor, name, forbiddenField) {
+  if (!(it instanceof Constructor) || (forbiddenField !== undefined && forbiddenField in it)) {
+    throw TypeError(name + ': incorrect invocation!');
+  } return it;
+};
diff --git a/js/lib/core-js/_an-object.js b/js/lib/core-js/_an-object.js
new file mode 100644
index 00000000000..b1c316cd2ba
--- /dev/null
+++ b/js/lib/core-js/_an-object.js
@@ -0,0 +1,5 @@
+var isObject = require('./_is-object');
+module.exports = function (it) {
+  if (!isObject(it)) throw TypeError(it + ' is not an object!');
+  return it;
+};
diff --git a/js/lib/core-js/_array-from-iterable.js b/js/lib/core-js/_array-from-iterable.js
new file mode 100644
index 00000000000..08be255f0ad
--- /dev/null
+++ b/js/lib/core-js/_array-from-iterable.js
@@ -0,0 +1,7 @@
+var forOf = require('./_for-of');
+
+module.exports = function (iter, ITERATOR) {
+  var result = [];
+  forOf(iter, false, result.push, result, ITERATOR);
+  return result;
+};
diff --git a/js/lib/core-js/_array-includes.js b/js/lib/core-js/_array-includes.js
new file mode 100644
index 00000000000..0ef3efebede
--- /dev/null
+++ b/js/lib/core-js/_array-includes.js
@@ -0,0 +1,23 @@
+// false -> Array#indexOf
+// true  -> Array#includes
+var toIObject = require('./_to-iobject');
+var toLength = require('./_to-length');
+var toAbsoluteIndex = require('./_to-absolute-index');
+module.exports = function (IS_INCLUDES) {
+  return function ($this, el, fromIndex) {
+    var O = toIObject($this);
+    var length = toLength(O.length);
+    var index = toAbsoluteIndex(fromIndex, length);
+    var value;
+    // Array#includes uses SameValueZero equality algorithm
+    // eslint-disable-next-line no-self-compare
+    if (IS_INCLUDES && el != el) while (length > index) {
+      value = O[index++];
+      // eslint-disable-next-line no-self-compare
+      if (value != value) return true;
+    // Array#indexOf ignores holes, Array#includes - not
+    } else for (;length > index; index++) if (IS_INCLUDES || index in O) {
+      if (O[index] === el) return IS_INCLUDES || index || 0;
+    } return !IS_INCLUDES && -1;
+  };
+};
diff --git a/js/lib/core-js/_array-methods.js b/js/lib/core-js/_array-methods.js
new file mode 100644
index 00000000000..ae7f447da3c
--- /dev/null
+++ b/js/lib/core-js/_array-methods.js
@@ -0,0 +1,44 @@
+// 0 -> Array#forEach
+// 1 -> Array#map
+// 2 -> Array#filter
+// 3 -> Array#some
+// 4 -> Array#every
+// 5 -> Array#find
+// 6 -> Array#findIndex
+var ctx = require('./_ctx');
+var IObject = require('./_iobject');
+var toObject = require('./_to-object');
+var toLength = require('./_to-length');
+var asc = require('./_array-species-create');
+module.exports = function (TYPE, $create) {
+  var IS_MAP = TYPE == 1;
+  var IS_FILTER = TYPE == 2;
+  var IS_SOME = TYPE == 3;
+  var IS_EVERY = TYPE == 4;
+  var IS_FIND_INDEX = TYPE == 6;
+  var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;
+  var create = $create || asc;
+  return function ($this, callbackfn, that) {
+    var O = toObject($this);
+    var self = IObject(O);
+    var f = ctx(callbackfn, that, 3);
+    var length = toLength(self.length);
+    var index = 0;
+    var result = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined;
+    var val, res;
+    for (;length > index; index++) if (NO_HOLES || index in self) {
+      val = self[index];
+      res = f(val, index, O);
+      if (TYPE) {
+        if (IS_MAP) result[index] = res;   // map
+        else if (res) switch (TYPE) {
+          case 3: return true;             // some
+          case 5: return val;              // find
+          case 6: return index;            // findIndex
+          case 2: result.push(val);        // filter
+        } else if (IS_EVERY) return false; // every
+      }
+    }
+    return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : result;
+  };
+};
diff --git a/js/lib/core-js/_array-species-constructor.js b/js/lib/core-js/_array-species-constructor.js
new file mode 100644
index 00000000000..0771c236d0b
--- /dev/null
+++ b/js/lib/core-js/_array-species-constructor.js
@@ -0,0 +1,16 @@
+var isObject = require('./_is-object');
+var isArray = require('./_is-array');
+var SPECIES = require('./_wks')('species');
+
+module.exports = function (original) {
+  var C;
+  if (isArray(original)) {
+    C = original.constructor;
+    // cross-realm fallback
+    if (typeof C == 'function' && (C === Array || isArray(C.prototype))) C = undefined;
+    if (isObject(C)) {
+      C = C[SPECIES];
+      if (C === null) C = undefined;
+    }
+  } return C === undefined ? Array : C;
+};
diff --git a/js/lib/core-js/_array-species-create.js b/js/lib/core-js/_array-species-create.js
new file mode 100644
index 00000000000..36ed58bd79c
--- /dev/null
+++ b/js/lib/core-js/_array-species-create.js
@@ -0,0 +1,6 @@
+// 9.4.2.3 ArraySpeciesCreate(originalArray, length)
+var speciesConstructor = require('./_array-species-constructor');
+
+module.exports = function (original, length) {
+  return new (speciesConstructor(original))(length);
+};
diff --git a/js/lib/core-js/_classof.js b/js/lib/core-js/_classof.js
new file mode 100644
index 00000000000..d106d5be62c
--- /dev/null
+++ b/js/lib/core-js/_classof.js
@@ -0,0 +1,23 @@
+// getting tag from 19.1.3.6 Object.prototype.toString()
+var cof = require('./_cof');
+var TAG = require('./_wks')('toStringTag');
+// ES3 wrong here
+var ARG = cof(function () { return arguments; }()) == 'Arguments';
+
+// fallback for IE11 Script Access Denied error
+var tryGet = function (it, key) {
+  try {
+    return it[key];
+  } catch (e) { /* empty */ }
+};
+
+module.exports = function (it) {
+  var O, T, B;
+  return it === undefined ? 'Undefined' : it === null ? 'Null'
+    // @@toStringTag case
+    : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T
+    // builtinTag case
+    : ARG ? cof(O)
+    // ES3 arguments fallback
+    : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;
+};
diff --git a/js/lib/core-js/_cof.js b/js/lib/core-js/_cof.js
new file mode 100644
index 00000000000..332c0bc0b96
--- /dev/null
+++ b/js/lib/core-js/_cof.js
@@ -0,0 +1,5 @@
+var toString = {}.toString;
+
+module.exports = function (it) {
+  return toString.call(it).slice(8, -1);
+};
diff --git a/js/lib/core-js/_collection-strong.js b/js/lib/core-js/_collection-strong.js
new file mode 100644
index 00000000000..68ce63f0e06
--- /dev/null
+++ b/js/lib/core-js/_collection-strong.js
@@ -0,0 +1,144 @@
+'use strict';
+var dP = require('./_object-dp').f;
+var create = require('./_object-create');
+var redefineAll = require('./_redefine-all');
+var ctx = require('./_ctx');
+var anInstance = require('./_an-instance');
+var forOf = require('./_for-of');
+var $iterDefine = require('./_iter-define');
+var step = require('./_iter-step');
+var setSpecies = require('./_set-species');
+var DESCRIPTORS = require('./_descriptors');
+var fastKey = require('./_meta').fastKey;
+var validate = require('./_validate-collection');
+var SIZE = DESCRIPTORS ? '_s' : 'size';
+
+var getEntry = function (that, key) {
+  // fast case
+  var index = fastKey(key);
+  var entry;
+  if (index !== 'F') return that._i[index];
+  // frozen object case
+  for (entry = that._f; entry; entry = entry.n) {
+    if (entry.k == key) return entry;
+  }
+};
+
+module.exports = {
+  getConstructor: function (wrapper, NAME, IS_MAP, ADDER) {
+    var C = wrapper(function (that, iterable) {
+      anInstance(that, C, NAME, '_i');
+      that._t = NAME;         // collection type
+      that._i = create(null); // index
+      that._f = undefined;    // first entry
+      that._l = undefined;    // last entry
+      that[SIZE] = 0;         // size
+      if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);
+    });
+    redefineAll(C.prototype, {
+      // 23.1.3.1 Map.prototype.clear()
+      // 23.2.3.2 Set.prototype.clear()
+      clear: function clear() {
+        for (var that = validate(this, NAME), data = that._i, entry = that._f; entry; entry = entry.n) {
+          entry.r = true;
+          if (entry.p) entry.p = entry.p.n = undefined;
+          delete data[entry.i];
+        }
+        that._f = that._l = undefined;
+        that[SIZE] = 0;
+      },
+      // 23.1.3.3 Map.prototype.delete(key)
+      // 23.2.3.4 Set.prototype.delete(value)
+      'delete': function (key) {
+        var that = validate(this, NAME);
+        var entry = getEntry(that, key);
+        if (entry) {
+          var next = entry.n;
+          var prev = entry.p;
+          delete that._i[entry.i];
+          entry.r = true;
+          if (prev) prev.n = next;
+          if (next) next.p = prev;
+          if (that._f == entry) that._f = next;
+          if (that._l == entry) that._l = prev;
+          that[SIZE]--;
+        } return !!entry;
+      },
+      // 23.2.3.6 Set.prototype.forEach(callbackfn, thisArg = undefined)
+      // 23.1.3.5 Map.prototype.forEach(callbackfn, thisArg = undefined)
+      forEach: function forEach(callbackfn /* , that = undefined */) {
+        validate(this, NAME);
+        var f = ctx(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);
+        var entry;
+        while (entry = entry ? entry.n : this._f) {
+          f(entry.v, entry.k, this);
+          // revert to the last existing entry
+          while (entry && entry.r) entry = entry.p;
+        }
+      },
+      // 23.1.3.7 Map.prototype.has(key)
+      // 23.2.3.7 Set.prototype.has(value)
+      has: function has(key) {
+        return !!getEntry(validate(this, NAME), key);
+      }
+    });
+    if (DESCRIPTORS) dP(C.prototype, 'size', {
+      get: function () {
+        return validate(this, NAME)[SIZE];
+      }
+    });
+    return C;
+  },
+  def: function (that, key, value) {
+    var entry = getEntry(that, key);
+    var prev, index;
+    // change existing entry
+    if (entry) {
+      entry.v = value;
+    // create new entry
+    } else {
+      that._l = entry = {
+        i: index = fastKey(key, true), // <- index
+        k: key,                        // <- key
+        v: value,                      // <- value
+        p: prev = that._l,             // <- previous entry
+        n: undefined,                  // <- next entry
+        r: false                       // <- removed
+      };
+      if (!that._f) that._f = entry;
+      if (prev) prev.n = entry;
+      that[SIZE]++;
+      // add to index
+      if (index !== 'F') that._i[index] = entry;
+    } return that;
+  },
+  getEntry: getEntry,
+  setStrong: function (C, NAME, IS_MAP) {
+    // add .keys, .values, .entries, [@@iterator]
+    // 23.1.3.4, 23.1.3.8, 23.1.3.11, 23.1.3.12, 23.2.3.5, 23.2.3.8, 23.2.3.10, 23.2.3.11
+    $iterDefine(C, NAME, function (iterated, kind) {
+      this._t = validate(iterated, NAME); // target
+      this._k = kind;                     // kind
+      this._l = undefined;                // previous
+    }, function () {
+      var that = this;
+      var kind = that._k;
+      var entry = that._l;
+      // revert to the last existing entry
+      while (entry && entry.r) entry = entry.p;
+      // get next entry
+      if (!that._t || !(that._l = entry = entry ? entry.n : that._t._f)) {
+        // or finish the iteration
+        that._t = undefined;
+        return step(1);
+      }
+      // return step by kind
+      if (kind == 'keys') return step(0, entry.k);
+      if (kind == 'values') return step(0, entry.v);
+      return step(0, [entry.k, entry.v]);
+    }, IS_MAP ? 'entries' : 'values', !IS_MAP, true);
+
+    // add [@@species], 23.1.2.2, 23.2.2.2
+    setSpecies(NAME);
+  }
+};
diff --git a/js/lib/core-js/_collection-to-json.js b/js/lib/core-js/_collection-to-json.js
new file mode 100644
index 00000000000..a6ee0029a42
--- /dev/null
+++ b/js/lib/core-js/_collection-to-json.js
@@ -0,0 +1,9 @@
+// https://github.com/DavidBruant/Map-Set.prototype.toJSON
+var classof = require('./_classof');
+var from = require('./_array-from-iterable');
+module.exports = function (NAME) {
+  return function toJSON() {
+    if (classof(this) != NAME) throw TypeError(NAME + "#toJSON isn't generic");
+    return from(this);
+  };
+};
diff --git a/js/lib/core-js/_collection-weak.js b/js/lib/core-js/_collection-weak.js
new file mode 100644
index 00000000000..04d3af5afe5
--- /dev/null
+++ b/js/lib/core-js/_collection-weak.js
@@ -0,0 +1,85 @@
+'use strict';
+var redefineAll = require('./_redefine-all');
+var getWeak = require('./_meta').getWeak;
+var anObject = require('./_an-object');
+var isObject = require('./_is-object');
+var anInstance = require('./_an-instance');
+var forOf = require('./_for-of');
+var createArrayMethod = require('./_array-methods');
+var $has = require('./_has');
+var validate = require('./_validate-collection');
+var arrayFind = createArrayMethod(5);
+var arrayFindIndex = createArrayMethod(6);
+var id = 0;
+
+// fallback for uncaught frozen keys
+var uncaughtFrozenStore = function (that) {
+  return that._l || (that._l = new UncaughtFrozenStore());
+};
+var UncaughtFrozenStore = function () {
+  this.a = [];
+};
+var findUncaughtFrozen = function (store, key) {
+  return arrayFind(store.a, function (it) {
+    return it[0] === key;
+  });
+};
+UncaughtFrozenStore.prototype = {
+  get: function (key) {
+    var entry = findUncaughtFrozen(this, key);
+    if (entry) return entry[1];
+  },
+  has: function (key) {
+    return !!findUncaughtFrozen(this, key);
+  },
+  set: function (key, value) {
+    var entry = findUncaughtFrozen(this, key);
+    if (entry) entry[1] = value;
+    else this.a.push([key, value]);
+  },
+  'delete': function (key) {
+    var index = arrayFindIndex(this.a, function (it) {
+      return it[0] === key;
+    });
+    if (~index) this.a.splice(index, 1);
+    return !!~index;
+  }
+};
+
+module.exports = {
+  getConstructor: function (wrapper, NAME, IS_MAP, ADDER) {
+    var C = wrapper(function (that, iterable) {
+      anInstance(that, C, NAME, '_i');
+      that._t = NAME;      // collection type
+      that._i = id++;      // collection id
+      that._l = undefined; // leak store for uncaught frozen objects
+      if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);
+    });
+    redefineAll(C.prototype, {
+      // 23.3.3.2 WeakMap.prototype.delete(key)
+      // 23.4.3.3 WeakSet.prototype.delete(value)
+      'delete': function (key) {
+        if (!isObject(key)) return false;
+        var data = getWeak(key);
+        if (data === true) return uncaughtFrozenStore(validate(this, NAME))['delete'](key);
+        return data && $has(data, this._i) && delete data[this._i];
+      },
+      // 23.3.3.4 WeakMap.prototype.has(key)
+      // 23.4.3.4 WeakSet.prototype.has(value)
+      has: function has(key) {
+        if (!isObject(key)) return false;
+        var data = getWeak(key);
+        if (data === true) return uncaughtFrozenStore(validate(this, NAME)).has(key);
+        return data && $has(data, this._i);
+      }
+    });
+    return C;
+  },
+  def: function (that, key, value) {
+    var data = getWeak(anObject(key), true);
+    if (data === true) uncaughtFrozenStore(that).set(key, value);
+    else data[that._i] = value;
+    return that;
+  },
+  ufstore: uncaughtFrozenStore
+};
diff --git a/js/lib/core-js/_collection.js b/js/lib/core-js/_collection.js
new file mode 100644
index 00000000000..767dde50682
--- /dev/null
+++ b/js/lib/core-js/_collection.js
@@ -0,0 +1,85 @@
+'use strict';
+var global = require('./_global');
+var $export = require('./_export');
+var redefine = require('./_redefine');
+var redefineAll = require('./_redefine-all');
+var meta = require('./_meta');
+var forOf = require('./_for-of');
+var anInstance = require('./_an-instance');
+var isObject = require('./_is-object');
+var fails = require('./_fails');
+var $iterDetect = require('./_iter-detect');
+var setToStringTag = require('./_set-to-string-tag');
+var inheritIfRequired = require('./_inherit-if-required');
+
+module.exports = function (NAME, wrapper, methods, common, IS_MAP, IS_WEAK) {
+  var Base = global[NAME];
+  var C = Base;
+  var ADDER = IS_MAP ? 'set' : 'add';
+  var proto = C && C.prototype;
+  var O = {};
+  var fixMethod = function (KEY) {
+    var fn = proto[KEY];
+    redefine(proto, KEY,
+      KEY == 'delete' ? function (a) {
+        return IS_WEAK && !isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);
+      } : KEY == 'has' ? function has(a) {
+        return IS_WEAK && !isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);
+      } : KEY == 'get' ? function get(a) {
+        return IS_WEAK && !isObject(a) ? undefined : fn.call(this, a === 0 ? 0 : a);
+      } : KEY == 'add' ? function add(a) { fn.call(this, a === 0 ? 0 : a); return this; }
+        : function set(a, b) { fn.call(this, a === 0 ? 0 : a, b); return this; }
+    );
+  };
+  if (typeof C != 'function' || !(IS_WEAK || proto.forEach && !fails(function () {
+    new C().entries().next();
+  }))) {
+    // create collection constructor
+    C = common.getConstructor(wrapper, NAME, IS_MAP, ADDER);
+    redefineAll(C.prototype, methods);
+    meta.NEED = true;
+  } else {
+    var instance = new C();
+    // early implementations not supports chaining
+    var HASNT_CHAINING = instance[ADDER](IS_WEAK ? {} : -0, 1) != instance;
+    // V8 ~  Chromium 40- weak-collections throws on primitives, but should return false
+    var THROWS_ON_PRIMITIVES = fails(function () { instance.has(1); });
+    // most early implementations doesn't supports iterables, most modern - not close it correctly
+    var ACCEPT_ITERABLES = $iterDetect(function (iter) { new C(iter); }); // eslint-disable-line no-new
+    // for early implementations -0 and +0 not the same
+    var BUGGY_ZERO = !IS_WEAK && fails(function () {
+      // V8 ~ Chromium 42- fails only with 5+ elements
+      var $instance = new C();
+      var index = 5;
+      while (index--) $instance[ADDER](index, index);
+      return !$instance.has(-0);
+    });
+    if (!ACCEPT_ITERABLES) {
+      C = wrapper(function (target, iterable) {
+        anInstance(target, C, NAME);
+        var that = inheritIfRequired(new Base(), target, C);
+        if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);
+        return that;
+      });
+      C.prototype = proto;
+      proto.constructor = C;
+    }
+    if (THROWS_ON_PRIMITIVES || BUGGY_ZERO) {
+      fixMethod('delete');
+      fixMethod('has');
+      IS_MAP && fixMethod('get');
+    }
+    if (BUGGY_ZERO || HASNT_CHAINING) fixMethod(ADDER);
+    // weak collections should not contains .clear method
+    if (IS_WEAK && proto.clear) delete proto.clear;
+  }
+
+  setToStringTag(C, NAME);
+
+  O[NAME] = C;
+  $export($export.G + $export.W + $export.F * (C != Base), O);
+
+  if (!IS_WEAK) common.setStrong(C, NAME, IS_MAP);
+
+  return C;
+};
diff --git a/js/lib/core-js/_core.js b/js/lib/core-js/_core.js
new file mode 100644
index 00000000000..32d351c0a67
--- /dev/null
+++ b/js/lib/core-js/_core.js
@@ -0,0 +1,2 @@
+var core = module.exports = { version: '2.5.1' };
+if (typeof __e == 'number') __e = core; // eslint-disable-line no-undef
diff --git a/js/lib/core-js/_create-property.js b/js/lib/core-js/_create-property.js
new file mode 100644
index 00000000000..fd0ea8c9a7b
--- /dev/null
+++ b/js/lib/core-js/_create-property.js
@@ -0,0 +1,8 @@
+'use strict';
+var $defineProperty = require('./_object-dp');
+var createDesc = require('./_property-desc');
+
+module.exports = function (object, index, value) {
+  if (index in object) $defineProperty.f(object, index, createDesc(0, value));
+  else object[index] = value;
+};
diff --git a/js/lib/core-js/_ctx.js b/js/lib/core-js/_ctx.js
new file mode 100644
index 00000000000..0a100ff3d6c
--- /dev/null
+++ b/js/lib/core-js/_ctx.js
@@ -0,0 +1,20 @@
+// optional / simple context binding
+var aFunction = require('./_a-function');
+module.exports = function (fn, that, length) {
+  aFunction(fn);
+  if (that === undefined) return fn;
+  switch (length) {
+    case 1: return function (a) {
+      return fn.call(that, a);
+    };
+    case 2: return function (a, b) {
+      return fn.call(that, a, b);
+    };
+    case 3: return function (a, b, c) {
+      return fn.call(that, a, b, c);
+    };
+  }
+  return function (/* ...args */) {
+    return fn.apply(that, arguments);
+  };
+};
diff --git a/js/lib/core-js/_defined.js b/js/lib/core-js/_defined.js
new file mode 100644
index 00000000000..66c7ed323c4
--- /dev/null
+++ b/js/lib/core-js/_defined.js
@@ -0,0 +1,5 @@
+// 7.2.1 RequireObjectCoercible(argument)
+module.exports = function (it) {
+  if (it == undefined) throw TypeError("Can't call method on  " + it);
+  return it;
+};
diff --git a/js/lib/core-js/_descriptors.js b/js/lib/core-js/_descriptors.js
new file mode 100644
index 00000000000..046974066d3
--- /dev/null
+++ b/js/lib/core-js/_descriptors.js
@@ -0,0 +1,4 @@
+// Thank's IE8 for his funny defineProperty
+module.exports = !require('./_fails')(function () {
+  return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7;
+});
diff --git a/js/lib/core-js/_dom-create.js b/js/lib/core-js/_dom-create.js
new file mode 100644
index 00000000000..39ca2569d70
--- /dev/null
+++ b/js/lib/core-js/_dom-create.js
@@ -0,0 +1,7 @@
+var isObject = require('./_is-object');
+var document = require('./_global').document;
+// typeof document.createElement is 'object' in old IE
+var is = isObject(document) && isObject(document.createElement);
+module.exports = function (it) {
+  return is ? document.createElement(it) : {};
+};
diff --git a/js/lib/core-js/_enum-bug-keys.js b/js/lib/core-js/_enum-bug-keys.js
new file mode 100644
index 00000000000..d9ad85514ac
--- /dev/null
+++ b/js/lib/core-js/_enum-bug-keys.js
@@ -0,0 +1,4 @@
+// IE 8- don't enum bug keys
+module.exports = (
+  'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'
+).split(',');
diff --git a/js/lib/core-js/_export.js b/js/lib/core-js/_export.js
new file mode 100644
index 00000000000..3c907c6ea39
--- /dev/null
+++ b/js/lib/core-js/_export.js
@@ -0,0 +1,43 @@
+var global = require('./_global');
+var core = require('./_core');
+var hide = require('./_hide');
+var redefine = require('./_redefine');
+var ctx = require('./_ctx');
+var PROTOTYPE = 'prototype';
+
+var $export = function (type, name, source) {
+  var IS_FORCED = type & $export.F;
+  var IS_GLOBAL = type & $export.G;
+  var IS_STATIC = type & $export.S;
+  var IS_PROTO = type & $export.P;
+  var IS_BIND = type & $export.B;
+  var target = IS_GLOBAL ? global : IS_STATIC ? global[name] || (global[name] = {}) : (global[name] || {})[PROTOTYPE];
+  var exports = IS_GLOBAL ? core : core[name] || (core[name] = {});
+  var expProto = exports[PROTOTYPE] || (exports[PROTOTYPE] = {});
+  var key, own, out, exp;
+  if (IS_GLOBAL) source = name;
+  for (key in source) {
+    // contains in native
+    own = !IS_FORCED && target && target[key] !== undefined;
+    // export native or passed
+    out = (own ? target : source)[key];
+    // bind timers to global for call from export context
+    exp = IS_BIND && own ? ctx(out, global) : IS_PROTO && typeof out == 'function' ? ctx(Function.call, out) : out;
+    // extend global
+    if (target) redefine(target, key, out, type & $export.U);
+    // export
+    if (exports[key] != out) hide(exports, key, exp);
+    if (IS_PROTO && expProto[key] != out) expProto[key] = out;
+  }
+};
+global.core = core;
+// type bitmap
+$export.F = 1;   // forced
+$export.G = 2;   // global
+$export.S = 4;   // static
+$export.P = 8;   // proto
+$export.B = 16;  // bind
+$export.W = 32;  // wrap
+$export.U = 64;  // safe
+$export.R = 128; // real proto method for `library`
+module.exports = $export;
diff --git a/js/lib/core-js/_fails.js b/js/lib/core-js/_fails.js
new file mode 100644
index 00000000000..3b4cdf6740b
--- /dev/null
+++ b/js/lib/core-js/_fails.js
@@ -0,0 +1,7 @@
+module.exports = function (exec) {
+  try {
+    return !!exec();
+  } catch (e) {
+    return true;
+  }
+};
diff --git a/js/lib/core-js/_flags.js b/js/lib/core-js/_flags.js
new file mode 100644
index 00000000000..b6fc324bdfd
--- /dev/null
+++ b/js/lib/core-js/_flags.js
@@ -0,0 +1,13 @@
+'use strict';
+// 21.2.5.3 get RegExp.prototype.flags
+var anObject = require('./_an-object');
+module.exports = function () {
+  var that = anObject(this);
+  var result = '';
+  if (that.global) result += 'g';
+  if (that.ignoreCase) result += 'i';
+  if (that.multiline) result += 'm';
+  if (that.unicode) result += 'u';
+  if (that.sticky) result += 'y';
+  return result;
+};
diff --git a/js/lib/core-js/_flatten-into-array.js b/js/lib/core-js/_flatten-into-array.js
new file mode 100644
index 00000000000..1838517ae38
--- /dev/null
+++ b/js/lib/core-js/_flatten-into-array.js
@@ -0,0 +1,39 @@
+'use strict';
+// https://tc39.github.io/proposal-flatMap/#sec-FlattenIntoArray
+var isArray = require('./_is-array');
+var isObject = require('./_is-object');
+var toLength = require('./_to-length');
+var ctx = require('./_ctx');
+var IS_CONCAT_SPREADABLE = require('./_wks')('isConcatSpreadable');
+
+function flattenIntoArray(target, original, source, sourceLen, start, depth, mapper, thisArg) {
+  var targetIndex = start;
+  var sourceIndex = 0;
+  var mapFn = mapper ? ctx(mapper, thisArg, 3) : false;
+  var element, spreadable;
+
+  while (sourceIndex < sourceLen) {
+    if (sourceIndex in source) {
+      element = mapFn ? mapFn(source[sourceIndex], sourceIndex, original) : source[sourceIndex];
+
+      spreadable = false;
+      if (isObject(element)) {
+        spreadable = element[IS_CONCAT_SPREADABLE];
+        spreadable = spreadable !== undefined ? !!spreadable : isArray(element);
+      }
+
+      if (spreadable && depth > 0) {
+        targetIndex = flattenIntoArray(target, original, element, toLength(element.length), targetIndex, depth - 1) - 1;
+      } else {
+        if (targetIndex >= 0x1fffffffffffff) throw TypeError();
+        target[targetIndex] = element;
+      }
+
+      targetIndex++;
+    }
+    sourceIndex++;
+  }
+  return targetIndex;
+}
+
+module.exports = flattenIntoArray;
diff --git a/js/lib/core-js/_for-of.js b/js/lib/core-js/_for-of.js
new file mode 100644
index 00000000000..9ed22818b5d
--- /dev/null
+++ b/js/lib/core-js/_for-of.js
@@ -0,0 +1,25 @@
+var ctx = require('./_ctx');
+var call = require('./_iter-call');
+var isArrayIter = require('./_is-array-iter');
+var anObject = require('./_an-object');
+var toLength = require('./_to-length');
+var getIterFn = require('./core.get-iterator-method');
+var BREAK = {};
+var RETURN = {};
+var exports = module.exports = function (iterable, entries, fn, that, ITERATOR) {
+  var iterFn = ITERATOR ? function () { return iterable; } : getIterFn(iterable);
+  var f = ctx(fn, that, entries ? 2 : 1);
+  var index = 0;
+  var length, step, iterator, result;
+  if (typeof iterFn != 'function') throw TypeError(iterable + ' is not iterable!');
+  // fast case for arrays with default iterator
+  if (isArrayIter(iterFn)) for (length = toLength(iterable.length); length > index; index++) {
+    result = entries ? f(anObject(step = iterable[index])[0], step[1]) : f(iterable[index]);
+    if (result === BREAK || result === RETURN) return result;
+  } else for (iterator = iterFn.call(iterable); !(step = iterator.next()).done;) {
+    result = call(iterator, f, step.value, entries);
+    if (result === BREAK || result === RETURN) return result;
+  }
+};
+exports.BREAK = BREAK;
+exports.RETURN = RETURN;
diff --git a/js/lib/core-js/_global.js b/js/lib/core-js/_global.js
new file mode 100644
index 00000000000..bf85b44a107
--- /dev/null
+++ b/js/lib/core-js/_global.js
@@ -0,0 +1,6 @@
+// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
+var global = module.exports = typeof window != 'undefined' && window.Math == Math
+  ? window : typeof self != 'undefined' && self.Math == Math ? self
+  // eslint-disable-next-line no-new-func
+  : Function('return this')();
+if (typeof __g == 'number') __g = global; // eslint-disable-line no-undef
diff --git a/js/lib/core-js/_has.js b/js/lib/core-js/_has.js
new file mode 100644
index 00000000000..2a37d8b7adf
--- /dev/null
+++ b/js/lib/core-js/_has.js
@@ -0,0 +1,4 @@
+var hasOwnProperty = {}.hasOwnProperty;
+module.exports = function (it, key) {
+  return hasOwnProperty.call(it, key);
+};
diff --git a/js/lib/core-js/_hide.js b/js/lib/core-js/_hide.js
new file mode 100644
index 00000000000..cec258a0ad2
--- /dev/null
+++ b/js/lib/core-js/_hide.js
@@ -0,0 +1,8 @@
+var dP = require('./_object-dp');
+var createDesc = require('./_property-desc');
+module.exports = require('./_descriptors') ? function (object, key, value) {
+  return dP.f(object, key, createDesc(1, value));
+} : function (object, key, value) {
+  object[key] = value;
+  return object;
+};
diff --git a/js/lib/core-js/_html.js b/js/lib/core-js/_html.js
new file mode 100644
index 00000000000..7daff14ca8e
--- /dev/null
+++ b/js/lib/core-js/_html.js
@@ -0,0 +1,2 @@
+var document = require('./_global').document;
+module.exports = document && document.documentElement;
diff --git a/js/lib/core-js/_ie8-dom-define.js b/js/lib/core-js/_ie8-dom-define.js
new file mode 100644
index 00000000000..a3805cb7fe1
--- /dev/null
+++ b/js/lib/core-js/_ie8-dom-define.js
@@ -0,0 +1,3 @@
+module.exports = !require('./_descriptors') && !require('./_fails')(function () {
+  return Object.defineProperty(require('./_dom-create')('div'), 'a', { get: function () { return 7; } }).a != 7;
+});
diff --git a/js/lib/core-js/_inherit-if-required.js b/js/lib/core-js/_inherit-if-required.js
new file mode 100644
index 00000000000..b95fcd98454
--- /dev/null
+++ b/js/lib/core-js/_inherit-if-required.js
@@ -0,0 +1,9 @@
+var isObject = require('./_is-object');
+var setPrototypeOf = require('./_set-proto').set;
+module.exports = function (that, target, C) {
+  var S = target.constructor;
+  var P;
+  if (S !== C && typeof S == 'function' && (P = S.prototype) !== C.prototype && isObject(P) && setPrototypeOf) {
+    setPrototypeOf(that, P);
+  } return that;
+};
diff --git a/js/lib/core-js/_invoke.js b/js/lib/core-js/_invoke.js
new file mode 100644
index 00000000000..6cccebdc12e
--- /dev/null
+++ b/js/lib/core-js/_invoke.js
@@ -0,0 +1,16 @@
+// fast apply, http://jsperf.lnkit.com/fast-apply/5
+module.exports = function (fn, args, that) {
+  var un = that === undefined;
+  switch (args.length) {
+    case 0: return un ? fn()
+                      : fn.call(that);
+    case 1: return un ? fn(args[0])
+                      : fn.call(that, args[0]);
+    case 2: return un ? fn(args[0], args[1])
+                      : fn.call(that, args[0], args[1]);
+    case 3: return un ? fn(args[0], args[1], args[2])
+                      : fn.call(that, args[0], args[1], args[2]);
+    case 4: return un ? fn(args[0], args[1], args[2], args[3])
+                      : fn.call(that, args[0], args[1], args[2], args[3]);
+  } return fn.apply(that, args);
+};
diff --git a/js/lib/core-js/_iobject.js b/js/lib/core-js/_iobject.js
new file mode 100644
index 00000000000..2b57c8a07c0
--- /dev/null
+++ b/js/lib/core-js/_iobject.js
@@ -0,0 +1,6 @@
+// fallback for non-array-like ES3 and non-enumerable old V8 strings
+var cof = require('./_cof');
+// eslint-disable-next-line no-prototype-builtins
+module.exports = Object('z').propertyIsEnumerable(0) ? Object : function (it) {
+  return cof(it) == 'String' ? it.split('') : Object(it);
+};
diff --git a/js/lib/core-js/_is-array-iter.js b/js/lib/core-js/_is-array-iter.js
new file mode 100644
index 00000000000..6f67d90522e
--- /dev/null
+++ b/js/lib/core-js/_is-array-iter.js
@@ -0,0 +1,8 @@
+// check on default Array iterator
+var Iterators = require('./_iterators');
+var ITERATOR = require('./_wks')('iterator');
+var ArrayProto = Array.prototype;
+
+module.exports = function (it) {
+  return it !== undefined && (Iterators.Array === it || ArrayProto[ITERATOR] === it);
+};
diff --git a/js/lib/core-js/_is-array.js b/js/lib/core-js/_is-array.js
new file mode 100644
index 00000000000..0581dc2e79b
--- /dev/null
+++ b/js/lib/core-js/_is-array.js
@@ -0,0 +1,5 @@
+// 7.2.2 IsArray(argument)
+var cof = require('./_cof');
+module.exports = Array.isArray || function isArray(arg) {
+  return cof(arg) == 'Array';
+};
diff --git a/js/lib/core-js/_is-object.js b/js/lib/core-js/_is-object.js
new file mode 100644
index 00000000000..dda6e04d273
--- /dev/null
+++ b/js/lib/core-js/_is-object.js
@@ -0,0 +1,3 @@
+module.exports = function (it) {
+  return typeof it === 'object' ? it !== null : typeof it === 'function';
+};
diff --git a/js/lib/core-js/_is-regexp.js b/js/lib/core-js/_is-regexp.js
new file mode 100644
index 00000000000..598d159d5fc
--- /dev/null
+++ b/js/lib/core-js/_is-regexp.js
@@ -0,0 +1,8 @@
+// 7.2.8 IsRegExp(argument)
+var isObject = require('./_is-object');
+var cof = require('./_cof');
+var MATCH = require('./_wks')('match');
+module.exports = function (it) {
+  var isRegExp;
+  return isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : cof(it) == 'RegExp');
+};
diff --git a/js/lib/core-js/_iter-call.js b/js/lib/core-js/_iter-call.js
new file mode 100644
index 00000000000..a7026e3474b
--- /dev/null
+++ b/js/lib/core-js/_iter-call.js
@@ -0,0 +1,12 @@
+// call something on iterator step with safe closing on error
+var anObject = require('./_an-object');
+module.exports = function (iterator, fn, value, entries) {
+  try {
+    return entries ? fn(anObject(value)[0], value[1]) : fn(value);
+  // 7.4.6 IteratorClose(iterator, completion)
+  } catch (e) {
+    var ret = iterator['return'];
+    if (ret !== undefined) anObject(ret.call(iterator));
+    throw e;
+  }
+};
diff --git a/js/lib/core-js/_iter-create.js b/js/lib/core-js/_iter-create.js
new file mode 100644
index 00000000000..04708c83cc3
--- /dev/null
+++ b/js/lib/core-js/_iter-create.js
@@ -0,0 +1,13 @@
+'use strict';
+var create = require('./_object-create');
+var descriptor = require('./_property-desc');
+var setToStringTag = require('./_set-to-string-tag');
+var IteratorPrototype = {};
+
+// 25.1.2.1.1 %IteratorPrototype%[@@iterator]()
+require('./_hide')(IteratorPrototype, require('./_wks')('iterator'), function () { return this; });
+
+module.exports = function (Constructor, NAME, next) {
+  Constructor.prototype = create(IteratorPrototype, { next: descriptor(1, next) });
+  setToStringTag(Constructor, NAME + ' Iterator');
+};
diff --git a/js/lib/core-js/_iter-define.js b/js/lib/core-js/_iter-define.js
new file mode 100644
index 00000000000..8f68107d8e9
--- /dev/null
+++ b/js/lib/core-js/_iter-define.js
@@ -0,0 +1,70 @@
+'use strict';
+var LIBRARY = require('./_library');
+var $export = require('./_export');
+var redefine = require('./_redefine');
+var hide = require('./_hide');
+var has = require('./_has');
+var Iterators = require('./_iterators');
+var $iterCreate = require('./_iter-create');
+var setToStringTag = require('./_set-to-string-tag');
+var getPrototypeOf = require('./_object-gpo');
+var ITERATOR = require('./_wks')('iterator');
+var BUGGY = !([].keys && 'next' in [].keys()); // Safari has buggy iterators w/o `next`
+var FF_ITERATOR = '@@iterator';
+var KEYS = 'keys';
+var VALUES = 'values';
+
+var returnThis = function () { return this; };
+
+module.exports = function (Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) {
+  $iterCreate(Constructor, NAME, next);
+  var getMethod = function (kind) {
+    if (!BUGGY && kind in proto) return proto[kind];
+    switch (kind) {
+      case KEYS: return function keys() { return new Constructor(this, kind); };
+      case VALUES: return function values() { return new Constructor(this, kind); };
+    } return function entries() { return new Constructor(this, kind); };
+  };
+  var TAG = NAME + ' Iterator';
+  var DEF_VALUES = DEFAULT == VALUES;
+  var VALUES_BUG = false;
+  var proto = Base.prototype;
+  var $native = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT];
+  var $default = $native || getMethod(DEFAULT);
+  var $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined;
+  var $anyNative = NAME == 'Array' ? proto.entries || $native : $native;
+  var methods, key, IteratorPrototype;
+  // Fix native
+  if ($anyNative) {
+    IteratorPrototype = getPrototypeOf($anyNative.call(new Base()));
+    if (IteratorPrototype !== Object.prototype && IteratorPrototype.next) {
+      // Set @@toStringTag to native iterators
+      setToStringTag(IteratorPrototype, TAG, true);
+      // fix for some old engines
+      if (!LIBRARY && !has(IteratorPrototype, ITERATOR)) hide(IteratorPrototype, ITERATOR, returnThis);
+    }
+  }
+  // fix Array#{values, @@iterator}.name in V8 / FF
+  if (DEF_VALUES && $native && $native.name !== VALUES) {
+    VALUES_BUG = true;
+    $default = function values() { return $native.call(this); };
+  }
+  // Define iterator
+  if ((!LIBRARY || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) {
+    hide(proto, ITERATOR, $default);
+  }
+  // Plug for library
+  Iterators[NAME] = $default;
+  Iterators[TAG] = returnThis;
+  if (DEFAULT) {
+    methods = {
+      values: DEF_VALUES ? $default : getMethod(VALUES),
+      keys: IS_SET ? $default : getMethod(KEYS),
+      entries: $entries
+    };
+    if (FORCED) for (key in methods) {
+      if (!(key in proto)) redefine(proto, key, methods[key]);
+    } else $export($export.P + $export.F * (BUGGY || VALUES_BUG), NAME, methods);
+  }
+  return methods;
+};
diff --git a/js/lib/core-js/_iter-detect.js b/js/lib/core-js/_iter-detect.js
new file mode 100644
index 00000000000..5cb34973ce9
--- /dev/null
+++ b/js/lib/core-js/_iter-detect.js
@@ -0,0 +1,22 @@
+var ITERATOR = require('./_wks')('iterator');
+var SAFE_CLOSING = false;
+
+try {
+  var riter = [7][ITERATOR]();
+  riter['return'] = function () { SAFE_CLOSING = true; };
+  // eslint-disable-next-line no-throw-literal
+  Array.from(riter, function () { throw 2; });
+} catch (e) { /* empty */ }
+
+module.exports = function (exec, skipClosing) {
+  if (!skipClosing && !SAFE_CLOSING) return false;
+  var safe = false;
+  try {
+    var arr = [7];
+    var iter = arr[ITERATOR]();
+    iter.next = function () { return { done: safe = true }; };
+    arr[ITERATOR] = function () { return iter; };
+    exec(arr);
+  } catch (e) { /* empty */ }
+  return safe;
+};
diff --git a/js/lib/core-js/_iter-step.js b/js/lib/core-js/_iter-step.js
new file mode 100644
index 00000000000..b0691c883d9
--- /dev/null
+++ b/js/lib/core-js/_iter-step.js
@@ -0,0 +1,3 @@
+module.exports = function (done, value) {
+  return { value: value, done: !!done };
+};
diff --git a/js/lib/core-js/_iterators.js b/js/lib/core-js/_iterators.js
new file mode 100644
index 00000000000..f053ebf7976
--- /dev/null
+++ b/js/lib/core-js/_iterators.js
@@ -0,0 +1 @@
+module.exports = {};
diff --git a/js/lib/core-js/_library.js b/js/lib/core-js/_library.js
new file mode 100644
index 00000000000..a5d30209bd0
--- /dev/null
+++ b/js/lib/core-js/_library.js
@@ -0,0 +1 @@
+module.exports = false;
diff --git a/js/lib/core-js/_meta.js b/js/lib/core-js/_meta.js
new file mode 100644
index 00000000000..2d4b3257999
--- /dev/null
+++ b/js/lib/core-js/_meta.js
@@ -0,0 +1,53 @@
+var META = require('./_uid')('meta');
+var isObject = require('./_is-object');
+var has = require('./_has');
+var setDesc = require('./_object-dp').f;
+var id = 0;
+var isExtensible = Object.isExtensible || function () {
+  return true;
+};
+var FREEZE = !require('./_fails')(function () {
+  return isExtensible(Object.preventExtensions({}));
+});
+var setMeta = function (it) {
+  setDesc(it, META, { value: {
+    i: 'O' + ++id, // object ID
+    w: {}          // weak collections IDs
+  } });
+};
+var fastKey = function (it, create) {
+  // return primitive with prefix
+  if (!isObject(it)) return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;
+  if (!has(it, META)) {
+    // can't set metadata to uncaught frozen object
+    if (!isExtensible(it)) return 'F';
+    // not necessary to add metadata
+    if (!create) return 'E';
+    // add missing metadata
+    setMeta(it);
+  // return object ID
+  } return it[META].i;
+};
+var getWeak = function (it, create) {
+  if (!has(it, META)) {
+    // can't set metadata to uncaught frozen object
+    if (!isExtensible(it)) return true;
+    // not necessary to add metadata
+    if (!create) return false;
+    // add missing metadata
+    setMeta(it);
+  // return hash weak collections IDs
+  } return it[META].w;
+};
+// add metadata on freeze-family methods calling
+var onFreeze = function (it) {
+  if (FREEZE && meta.NEED && isExtensible(it) && !has(it, META)) setMeta(it);
+  return it;
+};
+var meta = module.exports = {
+  KEY: META,
+  NEED: false,
+  fastKey: fastKey,
+  getWeak: getWeak,
+  onFreeze: onFreeze
+};
diff --git a/js/lib/core-js/_metadata.js b/js/lib/core-js/_metadata.js
new file mode 100644
index 00000000000..759cfc445c9
--- /dev/null
+++ b/js/lib/core-js/_metadata.js
@@ -0,0 +1,51 @@
+var Map = require('./es6.map');
+var $export = require('./_export');
+var shared = require('./_shared')('metadata');
+var store = shared.store || (shared.store = new (require('./es6.weak-map'))());
+
+var getOrCreateMetadataMap = function (target, targetKey, create) {
+  var targetMetadata = store.get(target);
+  if (!targetMetadata) {
+    if (!create) return undefined;
+    store.set(target, targetMetadata = new Map());
+  }
+  var keyMetadata = targetMetadata.get(targetKey);
+  if (!keyMetadata) {
+    if (!create) return undefined;
+    targetMetadata.set(targetKey, keyMetadata = new Map());
+  } return keyMetadata;
+};
+var ordinaryHasOwnMetadata = function (MetadataKey, O, P) {
+  var metadataMap = getOrCreateMetadataMap(O, P, false);
+  return metadataMap === undefined ? false : metadataMap.has(MetadataKey);
+};
+var ordinaryGetOwnMetadata = function (MetadataKey, O, P) {
+  var metadataMap = getOrCreateMetadataMap(O, P, false);
+  return metadataMap === undefined ? undefined : metadataMap.get(MetadataKey);
+};
+var ordinaryDefineOwnMetadata = function (MetadataKey, MetadataValue, O, P) {
+  getOrCreateMetadataMap(O, P, true).set(MetadataKey, MetadataValue);
+};
+var ordinaryOwnMetadataKeys = function (target, targetKey) {
+  var metadataMap = getOrCreateMetadataMap(target, targetKey, false);
+  var keys = [];
+  if (metadataMap) metadataMap.forEach(function (_, key) { keys.push(key); });
+  return keys;
+};
+var toMetaKey = function (it) {
+  return it === undefined || typeof it == 'symbol' ? it : String(it);
+};
+var exp = function (O) {
+  $export($export.S, 'Reflect', O);
+};
+
+module.exports = {
+  store: store,
+  map: getOrCreateMetadataMap,
+  has: ordinaryHasOwnMetadata,
+  get: ordinaryGetOwnMetadata,
+  set: ordinaryDefineOwnMetadata,
+  keys: ordinaryOwnMetadataKeys,
+  key: toMetaKey,
+  exp: exp
+};
diff --git a/js/lib/core-js/_microtask.js b/js/lib/core-js/_microtask.js
new file mode 100644
index 00000000000..8a90f7d2ea9
--- /dev/null
+++ b/js/lib/core-js/_microtask.js
@@ -0,0 +1,68 @@
+var global = require('./_global');
+var macrotask = require('./_task').set;
+var Observer = global.MutationObserver || global.WebKitMutationObserver;
+var process = global.process;
+var Promise = global.Promise;
+var isNode = require('./_cof')(process) == 'process';
+
+module.exports = function () {
+  var head, last, notify;
+
+  var flush = function () {
+    var parent, fn;
+    if (isNode && (parent = process.domain)) parent.exit();
+    while (head) {
+      fn = head.fn;
+      head = head.next;
+      try {
+        fn();
+      } catch (e) {
+        if (head) notify();
+        else last = undefined;
+        throw e;
+      }
+    } last = undefined;
+    if (parent) parent.enter();
+  };
+
+  // Node.js
+  if (isNode) {
+    notify = function () {
+      process.nextTick(flush);
+    };
+  // browsers with MutationObserver
+  } else if (Observer) {
+    var toggle = true;
+    var node = document.createTextNode('');
+    new Observer(flush).observe(node, { characterData: true }); // eslint-disable-line no-new
+    notify = function () {
+      node.data = toggle = !toggle;
+    };
+  // environments with maybe non-completely correct, but existent Promise
+  } else if (Promise && Promise.resolve) {
+    var promise = Promise.resolve();
+    notify = function () {
+      promise.then(flush);
+    };
+  // for other environments - macrotask based on:
+  // - setImmediate
+  // - MessageChannel
+  // - window.postMessag
+  // - onreadystatechange
+  // - setTimeout
+  } else {
+    notify = function () {
+      // strange IE + webpack dev server bug - use .call(global)
+      macrotask.call(global, flush);
+    };
+  }
+
+  return function (fn) {
+    var task = { fn: fn, next: undefined };
+    if (last) last.next = task;
+    if (!head) {
+      head = task;
+      notify();
+    } last = task;
+  };
+};
diff --git a/js/lib/core-js/_new-promise-capability.js b/js/lib/core-js/_new-promise-capability.js
new file mode 100644
index 00000000000..82b74a33150
--- /dev/null
+++ b/js/lib/core-js/_new-promise-capability.js
@@ -0,0 +1,18 @@
+'use strict';
+// 25.4.1.5 NewPromiseCapability(C)
+var aFunction = require('./_a-function');
+
+function PromiseCapability(C) {
+  var resolve, reject;
+  this.promise = new C(function ($$resolve, $$reject) {
+    if (resolve !== undefined || reject !== undefined) throw TypeError('Bad Promise constructor');
+    resolve = $$resolve;
+    reject = $$reject;
+  });
+  this.resolve = aFunction(resolve);
+  this.reject = aFunction(reject);
+}
+
+module.exports.f = function (C) {
+  return new PromiseCapability(C);
+};
diff --git a/js/lib/core-js/_object-assign.js b/js/lib/core-js/_object-assign.js
new file mode 100644
index 00000000000..7d4943a2a9b
--- /dev/null
+++ b/js/lib/core-js/_object-assign.js
@@ -0,0 +1,34 @@
+'use strict';
+// 19.1.2.1 Object.assign(target, source, ...)
+var getKeys = require('./_object-keys');
+var gOPS = require('./_object-gops');
+var pIE = require('./_object-pie');
+var toObject = require('./_to-object');
+var IObject = require('./_iobject');
+var $assign = Object.assign;
+
+// should work with symbols and should have deterministic property order (V8 bug)
+module.exports = !$assign || require('./_fails')(function () {
+  var A = {};
+  var B = {};
+  // eslint-disable-next-line no-undef
+  var S = Symbol();
+  var K = 'abcdefghijklmnopqrst';
+  A[S] = 7;
+  K.split('').forEach(function (k) { B[k] = k; });
+  return $assign({}, A)[S] != 7 || Object.keys($assign({}, B)).join('') != K;
+}) ? function assign(target, source) { // eslint-disable-line no-unused-vars
+  var T = toObject(target);
+  var aLen = arguments.length;
+  var index = 1;
+  var getSymbols = gOPS.f;
+  var isEnum = pIE.f;
+  while (aLen > index) {
+    var S = IObject(arguments[index++]);
+    var keys = getSymbols ? getKeys(S).concat(getSymbols(S)) : getKeys(S);
+    var length = keys.length;
+    var j = 0;
+    var key;
+    while (length > j) if (isEnum.call(S, key = keys[j++])) T[key] = S[key];
+  } return T;
+} : $assign;
diff --git a/js/lib/core-js/_object-create.js b/js/lib/core-js/_object-create.js
new file mode 100644
index 00000000000..a76808ea618
--- /dev/null
+++ b/js/lib/core-js/_object-create.js
@@ -0,0 +1,41 @@
+// 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])
+var anObject = require('./_an-object');
+var dPs = require('./_object-dps');
+var enumBugKeys = require('./_enum-bug-keys');
+var IE_PROTO = require('./_shared-key')('IE_PROTO');
+var Empty = function () { /* empty */ };
+var PROTOTYPE = 'prototype';
+
+// Create object with fake `null` prototype: use iframe Object with cleared prototype
+var createDict = function () {
+  // Thrash, waste and sodomy: IE GC bug
+  var iframe = require('./_dom-create')('iframe');
+  var i = enumBugKeys.length;
+  var lt = '<';
+  var gt = '>';
+  var iframeDocument;
+  iframe.style.display = 'none';
+  require('./_html').appendChild(iframe);
+  iframe.src = 'javascript:'; // eslint-disable-line no-script-url
+  // createDict = iframe.contentWindow.Object;
+  // html.removeChild(iframe);
+  iframeDocument = iframe.contentWindow.document;
+  iframeDocument.open();
+  iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);
+  iframeDocument.close();
+  createDict = iframeDocument.F;
+  while (i--) delete createDict[PROTOTYPE][enumBugKeys[i]];
+  return createDict();
+};
+
+module.exports = Object.create || function create(O, Properties) {
+  var result;
+  if (O !== null) {
+    Empty[PROTOTYPE] = anObject(O);
+    result = new Empty();
+    Empty[PROTOTYPE] = null;
+    // add "__proto__" for Object.getPrototypeOf polyfill
+    result[IE_PROTO] = O;
+  } else result = createDict();
+  return Properties === undefined ? result : dPs(result, Properties);
+};
diff --git a/js/lib/core-js/_object-dp.js b/js/lib/core-js/_object-dp.js
new file mode 100644
index 00000000000..0340a8308d1
--- /dev/null
+++ b/js/lib/core-js/_object-dp.js
@@ -0,0 +1,16 @@
+var anObject = require('./_an-object');
+var IE8_DOM_DEFINE = require('./_ie8-dom-define');
+var toPrimitive = require('./_to-primitive');
+var dP = Object.defineProperty;
+
+exports.f = require('./_descriptors') ? Object.defineProperty : function defineProperty(O, P, Attributes) {
+  anObject(O);
+  P = toPrimitive(P, true);
+  anObject(Attributes);
+  if (IE8_DOM_DEFINE) try {
+    return dP(O, P, Attributes);
+  } catch (e) { /* empty */ }
+  if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');
+  if ('value' in Attributes) O[P] = Attributes.value;
+  return O;
+};
diff --git a/js/lib/core-js/_object-dps.js b/js/lib/core-js/_object-dps.js
new file mode 100644
index 00000000000..173c338ff91
--- /dev/null
+++ b/js/lib/core-js/_object-dps.js
@@ -0,0 +1,13 @@
+var dP = require('./_object-dp');
+var anObject = require('./_an-object');
+var getKeys = require('./_object-keys');
+
+module.exports = require('./_descriptors') ? Object.defineProperties : function defineProperties(O, Properties) {
+  anObject(O);
+  var keys = getKeys(Properties);
+  var length = keys.length;
+  var i = 0;
+  var P;
+  while (length > i) dP.f(O, P = keys[i++], Properties[P]);
+  return O;
+};
diff --git a/js/lib/core-js/_object-forced-pam.js b/js/lib/core-js/_object-forced-pam.js
new file mode 100644
index 00000000000..71ede9225ab
--- /dev/null
+++ b/js/lib/core-js/_object-forced-pam.js
@@ -0,0 +1,9 @@
+'use strict';
+// Forced replacement prototype accessors methods
+module.exports = require('./_library') || !require('./_fails')(function () {
+  var K = Math.random();
+  // In FF throws only define methods
+  // eslint-disable-next-line no-undef, no-useless-call
+  __defineSetter__.call(null, K, function () { /* empty */ });
+  delete require('./_global')[K];
+});
diff --git a/js/lib/core-js/_object-gopd.js b/js/lib/core-js/_object-gopd.js
new file mode 100644
index 00000000000..555dd31a5bc
--- /dev/null
+++ b/js/lib/core-js/_object-gopd.js
@@ -0,0 +1,16 @@
+var pIE = require('./_object-pie');
+var createDesc = require('./_property-desc');
+var toIObject = require('./_to-iobject');
+var toPrimitive = require('./_to-primitive');
+var has = require('./_has');
+var IE8_DOM_DEFINE = require('./_ie8-dom-define');
+var gOPD = Object.getOwnPropertyDescriptor;
+
+exports.f = require('./_descriptors') ? gOPD : function getOwnPropertyDescriptor(O, P) {
+  O = toIObject(O);
+  P = toPrimitive(P, true);
+  if (IE8_DOM_DEFINE) try {
+    return gOPD(O, P);
+  } catch (e) { /* empty */ }
+  if (has(O, P)) return createDesc(!pIE.f.call(O, P), O[P]);
+};
diff --git a/js/lib/core-js/_object-gopn.js b/js/lib/core-js/_object-gopn.js
new file mode 100644
index 00000000000..da82333f60e
--- /dev/null
+++ b/js/lib/core-js/_object-gopn.js
@@ -0,0 +1,7 @@
+// 19.1.2.7 / 15.2.3.4 Object.getOwnPropertyNames(O)
+var $keys = require('./_object-keys-internal');
+var hiddenKeys = require('./_enum-bug-keys').concat('length', 'prototype');
+
+exports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
+  return $keys(O, hiddenKeys);
+};
diff --git a/js/lib/core-js/_object-gops.js b/js/lib/core-js/_object-gops.js
new file mode 100644
index 00000000000..bc067290564
--- /dev/null
+++ b/js/lib/core-js/_object-gops.js
@@ -0,0 +1 @@
+exports.f = Object.getOwnPropertySymbols;
diff --git a/js/lib/core-js/_object-gpo.js b/js/lib/core-js/_object-gpo.js
new file mode 100644
index 00000000000..27f2a94e886
--- /dev/null
+++ b/js/lib/core-js/_object-gpo.js
@@ -0,0 +1,13 @@
+// 19.1.2.9 / 15.2.3.2 Object.getPrototypeOf(O)
+var has = require('./_has');
+var toObject = require('./_to-object');
+var IE_PROTO = require('./_shared-key')('IE_PROTO');
+var ObjectProto = Object.prototype;
+
+module.exports = Object.getPrototypeOf || function (O) {
+  O = toObject(O);
+  if (has(O, IE_PROTO)) return O[IE_PROTO];
+  if (typeof O.constructor == 'function' && O instanceof O.constructor) {
+    return O.constructor.prototype;
+  } return O instanceof Object ? ObjectProto : null;
+};
diff --git a/js/lib/core-js/_object-keys-internal.js b/js/lib/core-js/_object-keys-internal.js
new file mode 100644
index 00000000000..71abdd1a535
--- /dev/null
+++ b/js/lib/core-js/_object-keys-internal.js
@@ -0,0 +1,17 @@
+var has = require('./_has');
+var toIObject = require('./_to-iobject');
+var arrayIndexOf = require('./_array-includes')(false);
+var IE_PROTO = require('./_shared-key')('IE_PROTO');
+
+module.exports = function (object, names) {
+  var O = toIObject(object);
+  var i = 0;
+  var result = [];
+  var key;
+  for (key in O) if (key != IE_PROTO) has(O, key) && result.push(key);
+  // Don't enum bug & hidden keys
+  while (names.length > i) if (has(O, key = names[i++])) {
+    ~arrayIndexOf(result, key) || result.push(key);
+  }
+  return result;
+};
diff --git a/js/lib/core-js/_object-keys.js b/js/lib/core-js/_object-keys.js
new file mode 100644
index 00000000000..62f73f91eee
--- /dev/null
+++ b/js/lib/core-js/_object-keys.js
@@ -0,0 +1,7 @@
+// 19.1.2.14 / 15.2.3.14 Object.keys(O)
+var $keys = require('./_object-keys-internal');
+var enumBugKeys = require('./_enum-bug-keys');
+
+module.exports = Object.keys || function keys(O) {
+  return $keys(O, enumBugKeys);
+};
diff --git a/js/lib/core-js/_object-pie.js b/js/lib/core-js/_object-pie.js
new file mode 100644
index 00000000000..4cc71072d36
--- /dev/null
+++ b/js/lib/core-js/_object-pie.js
@@ -0,0 +1 @@
+exports.f = {}.propertyIsEnumerable;
diff --git a/js/lib/core-js/_object-to-array.js b/js/lib/core-js/_object-to-array.js
new file mode 100644
index 00000000000..120100d0919
--- /dev/null
+++ b/js/lib/core-js/_object-to-array.js
@@ -0,0 +1,16 @@
+var getKeys = require('./_object-keys');
+var toIObject = require('./_to-iobject');
+var isEnum = require('./_object-pie').f;
+module.exports = function (isEntries) {
+  return function (it) {
+    var O = toIObject(it);
+    var keys = getKeys(O);
+    var length = keys.length;
+    var i = 0;
+    var result = [];
+    var key;
+    while (length > i) if (isEnum.call(O, key = keys[i++])) {
+      result.push(isEntries ? [key, O[key]] : O[key]);
+    } return result;
+  };
+};
diff --git a/js/lib/core-js/_own-keys.js b/js/lib/core-js/_own-keys.js
new file mode 100644
index 00000000000..84faece8f44
--- /dev/null
+++ b/js/lib/core-js/_own-keys.js
@@ -0,0 +1,10 @@
+// all object keys, includes non-enumerable and symbols
+var gOPN = require('./_object-gopn');
+var gOPS = require('./_object-gops');
+var anObject = require('./_an-object');
+var Reflect = require('./_global').Reflect;
+module.exports = Reflect && Reflect.ownKeys || function ownKeys(it) {
+  var keys = gOPN.f(anObject(it));
+  var getSymbols = gOPS.f;
+  return getSymbols ? keys.concat(getSymbols(it)) : keys;
+};
diff --git a/js/lib/core-js/_perform.js b/js/lib/core-js/_perform.js
new file mode 100644
index 00000000000..bfc7b296da9
--- /dev/null
+++ b/js/lib/core-js/_perform.js
@@ -0,0 +1,7 @@
+module.exports = function (exec) {
+  try {
+    return { e: false, v: exec() };
+  } catch (e) {
+    return { e: true, v: e };
+  }
+};
diff --git a/js/lib/core-js/_promise-resolve.js b/js/lib/core-js/_promise-resolve.js
new file mode 100644
index 00000000000..c3cac7646da
--- /dev/null
+++ b/js/lib/core-js/_promise-resolve.js
@@ -0,0 +1,12 @@
+var anObject = require('./_an-object');
+var isObject = require('./_is-object');
+var newPromiseCapability = require('./_new-promise-capability');
+
+module.exports = function (C, x) {
+  anObject(C);
+  if (isObject(x) && x.constructor === C) return x;
+  var promiseCapability = newPromiseCapability.f(C);
+  var resolve = promiseCapability.resolve;
+  resolve(x);
+  return promiseCapability.promise;
+};
diff --git a/js/lib/core-js/_property-desc.js b/js/lib/core-js/_property-desc.js
new file mode 100644
index 00000000000..090593405ff
--- /dev/null
+++ b/js/lib/core-js/_property-desc.js
@@ -0,0 +1,8 @@
+module.exports = function (bitmap, value) {
+  return {
+    enumerable: !(bitmap & 1),
+    configurable: !(bitmap & 2),
+    writable: !(bitmap & 4),
+    value: value
+  };
+};
diff --git a/js/lib/core-js/_redefine-all.js b/js/lib/core-js/_redefine-all.js
new file mode 100644
index 00000000000..dcf7944f57a
--- /dev/null
+++ b/js/lib/core-js/_redefine-all.js
@@ -0,0 +1,5 @@
+var redefine = require('./_redefine');
+module.exports = function (target, src, safe) {
+  for (var key in src) redefine(target, key, src[key], safe);
+  return target;
+};
diff --git a/js/lib/core-js/_redefine.js b/js/lib/core-js/_redefine.js
new file mode 100644
index 00000000000..b7ba9f30ed1
--- /dev/null
+++ b/js/lib/core-js/_redefine.js
@@ -0,0 +1,31 @@
+var global = require('./_global');
+var hide = require('./_hide');
+var has = require('./_has');
+var SRC = require('./_uid')('src');
+var TO_STRING = 'toString';
+var $toString = Function[TO_STRING];
+var TPL = ('' + $toString).split(TO_STRING);
+
+require('./_core').inspectSource = function (it) {
+  return $toString.call(it);
+};
+
+(module.exports = function (O, key, val, safe) {
+  var isFunction = typeof val == 'function';
+  if (isFunction) has(val, 'name') || hide(val, 'name', key);
+  if (O[key] === val) return;
+  if (isFunction) has(val, SRC) || hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key)));
+  if (O === global) {
+    O[key] = val;
+  } else if (!safe) {
+    delete O[key];
+    hide(O, key, val);
+  } else if (O[key]) {
+    O[key] = val;
+  } else {
+    hide(O, key, val);
+  }
+// add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative
+})(Function.prototype, TO_STRING, function toString() {
+  return typeof this == 'function' && this[SRC] || $toString.call(this);
+});
diff --git a/js/lib/core-js/_set-collection-from.js b/js/lib/core-js/_set-collection-from.js
new file mode 100644
index 00000000000..d5001f93e99
--- /dev/null
+++ b/js/lib/core-js/_set-collection-from.js
@@ -0,0 +1,28 @@
+'use strict';
+// https://tc39.github.io/proposal-setmap-offrom/
+var $export = require('./_export');
+var aFunction = require('./_a-function');
+var ctx = require('./_ctx');
+var forOf = require('./_for-of');
+
+module.exports = function (COLLECTION) {
+  $export($export.S, COLLECTION, { from: function from(source /* , mapFn, thisArg */) {
+    var mapFn = arguments[1];
+    var mapping, A, n, cb;
+    aFunction(this);
+    mapping = mapFn !== undefined;
+    if (mapping) aFunction(mapFn);
+    if (source == undefined) return new this();
+    A = [];
+    if (mapping) {
+      n = 0;
+      cb = ctx(mapFn, arguments[2], 2);
+      forOf(source, false, function (nextItem) {
+        A.push(cb(nextItem, n++));
+      });
+    } else {
+      forOf(source, false, A.push, A);
+    }
+    return new this(A);
+  } });
+};
diff --git a/js/lib/core-js/_set-collection-of.js b/js/lib/core-js/_set-collection-of.js
new file mode 100644
index 00000000000..dfb25800e76
--- /dev/null
+++ b/js/lib/core-js/_set-collection-of.js
@@ -0,0 +1,12 @@
+'use strict';
+// https://tc39.github.io/proposal-setmap-offrom/
+var $export = require('./_export');
+
+module.exports = function (COLLECTION) {
+  $export($export.S, COLLECTION, { of: function of() {
+    var length = arguments.length;
+    var A = Array(length);
+    while (length--) A[length] = arguments[length];
+    return new this(A);
+  } });
+};
diff --git a/js/lib/core-js/_set-proto.js b/js/lib/core-js/_set-proto.js
new file mode 100644
index 00000000000..c1990622ec9
--- /dev/null
+++ b/js/lib/core-js/_set-proto.js
@@ -0,0 +1,25 @@
+// Works with __proto__ only. Old v8 can't work with null proto objects.
+/* eslint-disable no-proto */
+var isObject = require('./_is-object');
+var anObject = require('./_an-object');
+var check = function (O, proto) {
+  anObject(O);
+  if (!isObject(proto) && proto !== null) throw TypeError(proto + ": can't set as prototype!");
+};
+module.exports = {
+  set: Object.setPrototypeOf || ('__proto__' in {} ? // eslint-disable-line
+    function (test, buggy, set) {
+      try {
+        set = require('./_ctx')(Function.call, require('./_object-gopd').f(Object.prototype, '__proto__').set, 2);
+        set(test, []);
+        buggy = !(test instanceof Array);
+      } catch (e) { buggy = true; }
+      return function setPrototypeOf(O, proto) {
+        check(O, proto);
+        if (buggy) O.__proto__ = proto;
+        else set(O, proto);
+        return O;
+      };
+    }({}, false) : undefined),
+  check: check
+};
diff --git a/js/lib/core-js/_set-species.js b/js/lib/core-js/_set-species.js
new file mode 100644
index 00000000000..2d505d2aa62
--- /dev/null
+++ b/js/lib/core-js/_set-species.js
@@ -0,0 +1,13 @@
+'use strict';
+var global = require('./_global');
+var dP = require('./_object-dp');
+var DESCRIPTORS = require('./_descriptors');
+var SPECIES = require('./_wks')('species');
+
+module.exports = function (KEY) {
+  var C = global[KEY];
+  if (DESCRIPTORS && C && !C[SPECIES]) dP.f(C, SPECIES, {
+    configurable: true,
+    get: function () { return this; }
+  });
+};
diff --git a/js/lib/core-js/_set-to-string-tag.js b/js/lib/core-js/_set-to-string-tag.js
new file mode 100644
index 00000000000..5bd64144f0d
--- /dev/null
+++ b/js/lib/core-js/_set-to-string-tag.js
@@ -0,0 +1,7 @@
+var def = require('./_object-dp').f;
+var has = require('./_has');
+var TAG = require('./_wks')('toStringTag');
+
+module.exports = function (it, tag, stat) {
+  if (it && !has(it = stat ? it : it.prototype, TAG)) def(it, TAG, { configurable: true, value: tag });
+};
diff --git a/js/lib/core-js/_shared-key.js b/js/lib/core-js/_shared-key.js
new file mode 100644
index 00000000000..d47fe7a2812
--- /dev/null
+++ b/js/lib/core-js/_shared-key.js
@@ -0,0 +1,5 @@
+var shared = require('./_shared')('keys');
+var uid = require('./_uid');
+module.exports = function (key) {
+  return shared[key] || (shared[key] = uid(key));
+};
diff --git a/js/lib/core-js/_shared.js b/js/lib/core-js/_shared.js
new file mode 100644
index 00000000000..4d8f927f6d6
--- /dev/null
+++ b/js/lib/core-js/_shared.js
@@ -0,0 +1,6 @@
+var global = require('./_global');
+var SHARED = '__core-js_shared__';
+var store = global[SHARED] || (global[SHARED] = {});
+module.exports = function (key) {
+  return store[key] || (store[key] = {});
+};
diff --git a/js/lib/core-js/_species-constructor.js b/js/lib/core-js/_species-constructor.js
new file mode 100644
index 00000000000..0cb4ffb8fc8
--- /dev/null
+++ b/js/lib/core-js/_species-constructor.js
@@ -0,0 +1,9 @@
+// 7.3.20 SpeciesConstructor(O, defaultConstructor)
+var anObject = require('./_an-object');
+var aFunction = require('./_a-function');
+var SPECIES = require('./_wks')('species');
+module.exports = function (O, D) {
+  var C = anObject(O).constructor;
+  var S;
+  return C === undefined || (S = anObject(C)[SPECIES]) == undefined ? D : aFunction(S);
+};
diff --git a/js/lib/core-js/_string-at.js b/js/lib/core-js/_string-at.js
new file mode 100644
index 00000000000..88d66bd18eb
--- /dev/null
+++ b/js/lib/core-js/_string-at.js
@@ -0,0 +1,17 @@
+var toInteger = require('./_to-integer');
+var defined = require('./_defined');
+// true  -> String#at
+// false -> String#codePointAt
+module.exports = function (TO_STRING) {
+  return function (that, pos) {
+    var s = String(defined(that));
+    var i = toInteger(pos);
+    var l = s.length;
+    var a, b;
+    if (i < 0 || i >= l) return TO_STRING ? '' : undefined;
+    a = s.charCodeAt(i);
+    return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff
+      ? TO_STRING ? s.charAt(i) : a
+      : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
+  };
+};
diff --git a/js/lib/core-js/_string-pad.js b/js/lib/core-js/_string-pad.js
new file mode 100644
index 00000000000..ceb6077f055
--- /dev/null
+++ b/js/lib/core-js/_string-pad.js
@@ -0,0 +1,16 @@
+// https://github.com/tc39/proposal-string-pad-start-end
+var toLength = require('./_to-length');
+var repeat = require('./_string-repeat');
+var defined = require('./_defined');
+
+module.exports = function (that, maxLength, fillString, left) {
+  var S = String(defined(that));
+  var stringLength = S.length;
+  var fillStr = fillString === undefined ? ' ' : String(fillString);
+  var intMaxLength = toLength(maxLength);
+  if (intMaxLength <= stringLength || fillStr == '') return S;
+  var fillLen = intMaxLength - stringLength;
+  var stringFiller = repeat.call(fillStr, Math.ceil(fillLen / fillStr.length));
+  if (stringFiller.length > fillLen) stringFiller = stringFiller.slice(0, fillLen);
+  return left ? stringFiller + S : S + stringFiller;
+};
diff --git a/js/lib/core-js/_string-repeat.js b/js/lib/core-js/_string-repeat.js
new file mode 100644
index 00000000000..a69b9626b7d
--- /dev/null
+++ b/js/lib/core-js/_string-repeat.js
@@ -0,0 +1,12 @@
+'use strict';
+var toInteger = require('./_to-integer');
+var defined = require('./_defined');
+
+module.exports = function repeat(count) {
+  var str = String(defined(this));
+  var res = '';
+  var n = toInteger(count);
+  if (n < 0 || n == Infinity) throw RangeError("Count can't be negative");
+  for (;n > 0; (n >>>= 1) && (str += str)) if (n & 1) res += str;
+  return res;
+};
diff --git a/js/lib/core-js/_string-trim.js b/js/lib/core-js/_string-trim.js
new file mode 100644
index 00000000000..6b54a81a848
--- /dev/null
+++ b/js/lib/core-js/_string-trim.js
@@ -0,0 +1,30 @@
+var $export = require('./_export');
+var defined = require('./_defined');
+var fails = require('./_fails');
+var spaces = require('./_string-ws');
+var space = '[' + spaces + ']';
+var non = '\u200b\u0085';
+var ltrim = RegExp('^' + space + space + '*');
+var rtrim = RegExp(space + space + '*$');
+
+var exporter = function (KEY, exec, ALIAS) {
+  var exp = {};
+  var FORCE = fails(function () {
+    return !!spaces[KEY]() || non[KEY]() != non;
+  });
+  var fn = exp[KEY] = FORCE ? exec(trim) : spaces[KEY];
+  if (ALIAS) exp[ALIAS] = fn;
+  $export($export.P + $export.F * FORCE, 'String', exp);
+};
+
+// 1 -> String#trimLeft
+// 2 -> String#trimRight
+// 3 -> String#trim
+var trim = exporter.trim = function (string, TYPE) {
+  string = String(defined(string));
+  if (TYPE & 1) string = string.replace(ltrim, '');
+  if (TYPE & 2) string = string.replace(rtrim, '');
+  return string;
+};
+
+module.exports = exporter;
diff --git a/js/lib/core-js/_string-ws.js b/js/lib/core-js/_string-ws.js
new file mode 100644
index 00000000000..2c68cf9f4ba
--- /dev/null
+++ b/js/lib/core-js/_string-ws.js
@@ -0,0 +1,2 @@
+module.exports = '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003' +
+  '\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF';
diff --git a/js/lib/core-js/_task.js b/js/lib/core-js/_task.js
new file mode 100644
index 00000000000..8777a6e28ba
--- /dev/null
+++ b/js/lib/core-js/_task.js
@@ -0,0 +1,84 @@
+var ctx = require('./_ctx');
+var invoke = require('./_invoke');
+var html = require('./_html');
+var cel = require('./_dom-create');
+var global = require('./_global');
+var process = global.process;
+var setTask = global.setImmediate;
+var clearTask = global.clearImmediate;
+var MessageChannel = global.MessageChannel;
+var Dispatch = global.Dispatch;
+var counter = 0;
+var queue = {};
+var ONREADYSTATECHANGE = 'onreadystatechange';
+var defer, channel, port;
+var run = function () {
+  var id = +this;
+  // eslint-disable-next-line no-prototype-builtins
+  if (queue.hasOwnProperty(id)) {
+    var fn = queue[id];
+    delete queue[id];
+    fn();
+  }
+};
+var listener = function (event) {
+  run.call(event.data);
+};
+// Node.js 0.9+ & IE10+ has setImmediate, otherwise:
+if (!setTask || !clearTask) {
+  setTask = function setImmediate(fn) {
+    var args = [];
+    var i = 1;
+    while (arguments.length > i) args.push(arguments[i++]);
+    queue[++counter] = function () {
+      // eslint-disable-next-line no-new-func
+      invoke(typeof fn == 'function' ? fn : Function(fn), args);
+    };
+    defer(counter);
+    return counter;
+  };
+  clearTask = function clearImmediate(id) {
+    delete queue[id];
+  };
+  // Node.js 0.8-
+  if (require('./_cof')(process) == 'process') {
+    defer = function (id) {
+      process.nextTick(ctx(run, id, 1));
+    };
+  // Sphere (JS game engine) Dispatch API
+  } else if (Dispatch && Dispatch.now) {
+    defer = function (id) {
+      Dispatch.now(ctx(run, id, 1));
+    };
+  // Browsers with MessageChannel, includes WebWorkers
+  } else if (MessageChannel) {
+    channel = new MessageChannel();
+    port = channel.port2;
+    channel.port1.onmessage = listener;
+    defer = ctx(port.postMessage, port, 1);
+  // Browsers with postMessage, skip WebWorkers
+  // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'
+  } else if (global.addEventListener && typeof postMessage == 'function' && !global.importScripts) {
+    defer = function (id) {
+      global.postMessage(id + '', '*');
+    };
+    global.addEventListener('message', listener, false);
+  // IE8-
+  } else if (ONREADYSTATECHANGE in cel('script')) {
+    defer = function (id) {
+      html.appendChild(cel('script'))[ONREADYSTATECHANGE] = function () {
+        html.removeChild(this);
+        run.call(id);
+      };
+    };
+  // Rest old browsers
+  } else {
+    defer = function (id) {
+      setTimeout(ctx(run, id, 1), 0);
+    };
+  }
+}
+module.exports = {
+  set: setTask,
+  clear: clearTask
+};
diff --git a/js/lib/core-js/_to-absolute-index.js b/js/lib/core-js/_to-absolute-index.js
new file mode 100644
index 00000000000..dfee02e8e25
--- /dev/null
+++ b/js/lib/core-js/_to-absolute-index.js
@@ -0,0 +1,7 @@
+var toInteger = require('./_to-integer');
+var max = Math.max;
+var min = Math.min;
+module.exports = function (index, length) {
+  index = toInteger(index);
+  return index < 0 ? max(index + length, 0) : min(index, length);
+};
diff --git a/js/lib/core-js/_to-integer.js b/js/lib/core-js/_to-integer.js
new file mode 100644
index 00000000000..3d50f97dd80
--- /dev/null
+++ b/js/lib/core-js/_to-integer.js
@@ -0,0 +1,6 @@
+// 7.1.4 ToInteger
+var ceil = Math.ceil;
+var floor = Math.floor;
+module.exports = function (it) {
+  return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
+};
diff --git a/js/lib/core-js/_to-iobject.js b/js/lib/core-js/_to-iobject.js
new file mode 100644
index 00000000000..7614503a2e7
--- /dev/null
+++ b/js/lib/core-js/_to-iobject.js
@@ -0,0 +1,6 @@
+// to indexed object, toObject with fallback for non-array-like ES3 strings
+var IObject = require('./_iobject');
+var defined = require('./_defined');
+module.exports = function (it) {
+  return IObject(defined(it));
+};
diff --git a/js/lib/core-js/_to-length.js b/js/lib/core-js/_to-length.js
new file mode 100644
index 00000000000..a9db5017355
--- /dev/null
+++ b/js/lib/core-js/_to-length.js
@@ -0,0 +1,6 @@
+// 7.1.15 ToLength
+var toInteger = require('./_to-integer');
+var min = Math.min;
+module.exports = function (it) {
+  return it > 0 ? min(toInteger(it), 0x1fffffffffffff) : 0; // pow(2, 53) - 1 == 9007199254740991
+};
diff --git a/js/lib/core-js/_to-object.js b/js/lib/core-js/_to-object.js
new file mode 100644
index 00000000000..0efea4c6965
--- /dev/null
+++ b/js/lib/core-js/_to-object.js
@@ -0,0 +1,5 @@
+// 7.1.13 ToObject(argument)
+var defined = require('./_defined');
+module.exports = function (it) {
+  return Object(defined(it));
+};
diff --git a/js/lib/core-js/_to-primitive.js b/js/lib/core-js/_to-primitive.js
new file mode 100644
index 00000000000..de3dd6b19d1
--- /dev/null
+++ b/js/lib/core-js/_to-primitive.js
@@ -0,0 +1,12 @@
+// 7.1.1 ToPrimitive(input [, PreferredType])
+var isObject = require('./_is-object');
+// instead of the ES6 spec version, we didn't implement @@toPrimitive case
+// and the second argument - flag - preferred type is a string
+module.exports = function (it, S) {
+  if (!isObject(it)) return it;
+  var fn, val;
+  if (S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
+  if (typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it))) return val;
+  if (!S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
+  throw TypeError("Can't convert object to primitive value");
+};
diff --git a/js/lib/core-js/_uid.js b/js/lib/core-js/_uid.js
new file mode 100644
index 00000000000..ffbe7185fcc
--- /dev/null
+++ b/js/lib/core-js/_uid.js
@@ -0,0 +1,5 @@
+var id = 0;
+var px = Math.random();
+module.exports = function (key) {
+  return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
+};
diff --git a/js/lib/core-js/_validate-collection.js b/js/lib/core-js/_validate-collection.js
new file mode 100644
index 00000000000..cec1ceff722
--- /dev/null
+++ b/js/lib/core-js/_validate-collection.js
@@ -0,0 +1,5 @@
+var isObject = require('./_is-object');
+module.exports = function (it, TYPE) {
+  if (!isObject(it) || it._t !== TYPE) throw TypeError('Incompatible receiver, ' + TYPE + ' required!');
+  return it;
+};
diff --git a/js/lib/core-js/_wks-define.js b/js/lib/core-js/_wks-define.js
new file mode 100644
index 00000000000..7284d6adaf5
--- /dev/null
+++ b/js/lib/core-js/_wks-define.js
@@ -0,0 +1,9 @@
+var global = require('./_global');
+var core = require('./_core');
+var LIBRARY = require('./_library');
+var wksExt = require('./_wks-ext');
+var defineProperty = require('./_object-dp').f;
+module.exports = function (name) {
+  var $Symbol = core.Symbol || (core.Symbol = LIBRARY ? {} : global.Symbol || {});
+  if (name.charAt(0) != '_' && !(name in $Symbol)) defineProperty($Symbol, name, { value: wksExt.f(name) });
+};
diff --git a/js/lib/core-js/_wks-ext.js b/js/lib/core-js/_wks-ext.js
new file mode 100644
index 00000000000..13bd83b16a1
--- /dev/null
+++ b/js/lib/core-js/_wks-ext.js
@@ -0,0 +1 @@
+exports.f = require('./_wks');
diff --git a/js/lib/core-js/_wks.js b/js/lib/core-js/_wks.js
new file mode 100644
index 00000000000..e33f857a695
--- /dev/null
+++ b/js/lib/core-js/_wks.js
@@ -0,0 +1,11 @@
+var store = require('./_shared')('wks');
+var uid = require('./_uid');
+var Symbol = require('./_global').Symbol;
+var USE_SYMBOL = typeof Symbol == 'function';
+
+var $exports = module.exports = function (name) {
+  return store[name] || (store[name] =
+    USE_SYMBOL && Symbol[name] || (USE_SYMBOL ? Symbol : uid)('Symbol.' + name));
+};
+
+$exports.store = store;
diff --git a/js/lib/core-js/core.get-iterator-method.js b/js/lib/core-js/core.get-iterator-method.js
new file mode 100644
index 00000000000..9b6fa62a56e
--- /dev/null
+++ b/js/lib/core-js/core.get-iterator-method.js
@@ -0,0 +1,8 @@
+var classof = require('./_classof');
+var ITERATOR = require('./_wks')('iterator');
+var Iterators = require('./_iterators');
+module.exports = require('./_core').getIteratorMethod = function (it) {
+  if (it != undefined) return it[ITERATOR]
+    || it['@@iterator']
+    || Iterators[classof(it)];
+};
diff --git a/js/lib/core-js/es6.map.js b/js/lib/core-js/es6.map.js
new file mode 100644
index 00000000000..a282f0222c7
--- /dev/null
+++ b/js/lib/core-js/es6.map.js
@@ -0,0 +1,19 @@
+'use strict';
+var strong = require('./_collection-strong');
+var validate = require('./_validate-collection');
+var MAP = 'Map';
+
+// 23.1 Map Objects
+module.exports = require('./_collection')(MAP, function (get) {
+  return function Map() { return get(this, arguments.length > 0 ? arguments[0] : undefined); };
+}, {
+  // 23.1.3.6 Map.prototype.get(key)
+  get: function get(key) {
+    var entry = strong.getEntry(validate(this, MAP), key);
+    return entry && entry.v;
+  },
+  // 23.1.3.9 Map.prototype.set(key, value)
+  set: function set(key, value) {
+    return strong.def(validate(this, MAP), key === 0 ? 0 : key, value);
+  }
+}, strong, true);
diff --git a/js/lib/core-js/es6.promise.js b/js/lib/core-js/es6.promise.js
new file mode 100644
index 00000000000..4315f6faaee
--- /dev/null
+++ b/js/lib/core-js/es6.promise.js
@@ -0,0 +1,280 @@
+'use strict';
+var LIBRARY = require('./_library');
+var global = require('./_global');
+var ctx = require('./_ctx');
+var classof = require('./_classof');
+var $export = require('./_export');
+var isObject = require('./_is-object');
+var aFunction = require('./_a-function');
+var anInstance = require('./_an-instance');
+var forOf = require('./_for-of');
+var speciesConstructor = require('./_species-constructor');
+var task = require('./_task').set;
+var microtask = require('./_microtask')();
+var newPromiseCapabilityModule = require('./_new-promise-capability');
+var perform = require('./_perform');
+var promiseResolve = require('./_promise-resolve');
+var PROMISE = 'Promise';
+var TypeError = global.TypeError;
+var process = global.process;
+var $Promise = global[PROMISE];
+var isNode = classof(process) == 'process';
+var empty = function () { /* empty */ };
+var Internal, newGenericPromiseCapability, OwnPromiseCapability, Wrapper;
+var newPromiseCapability = newGenericPromiseCapability = newPromiseCapabilityModule.f;
+
+var USE_NATIVE = !!function () {
+  try {
+    // correct subclassing with @@species support
+    var promise = $Promise.resolve(1);
+    var FakePromise = (promise.constructor = {})[require('./_wks')('species')] = function (exec) {
+      exec(empty, empty);
+    };
+    // unhandled rejections tracking support, NodeJS Promise without it fails @@species test
+    return (isNode || typeof PromiseRejectionEvent == 'function') && promise.then(empty) instanceof FakePromise;
+  } catch (e) { /* empty */ }
+}();
+
+// helpers
+var isThenable = function (it) {
+  var then;
+  return isObject(it) && typeof (then = it.then) == 'function' ? then : false;
+};
+var notify = function (promise, isReject) {
+  if (promise._n) return;
+  promise._n = true;
+  var chain = promise._c;
+  microtask(function () {
+    var value = promise._v;
+    var ok = promise._s == 1;
+    var i = 0;
+    var run = function (reaction) {
+      var handler = ok ? reaction.ok : reaction.fail;
+      var resolve = reaction.resolve;
+      var reject = reaction.reject;
+      var domain = reaction.domain;
+      var result, then;
+      try {
+        if (handler) {
+          if (!ok) {
+            if (promise._h == 2) onHandleUnhandled(promise);
+            promise._h = 1;
+          }
+          if (handler === true) result = value;
+          else {
+            if (domain) domain.enter();
+            result = handler(value);
+            if (domain) domain.exit();
+          }
+          if (result === reaction.promise) {
+            reject(TypeError('Promise-chain cycle'));
+          } else if (then = isThenable(result)) {
+            then.call(result, resolve, reject);
+          } else resolve(result);
+        } else reject(value);
+      } catch (e) {
+        reject(e);
+      }
+    };
+    while (chain.length > i) run(chain[i++]); // variable length - can't use forEach
+    promise._c = [];
+    promise._n = false;
+    if (isReject && !promise._h) onUnhandled(promise);
+  });
+};
+var onUnhandled = function (promise) {
+  task.call(global, function () {
+    var value = promise._v;
+    var unhandled = isUnhandled(promise);
+    var result, handler, console;
+    if (unhandled) {
+      result = perform(function () {
+        if (isNode) {
+          process.emit('unhandledRejection', value, promise);
+        } else if (handler = global.onunhandledrejection) {
+          handler({ promise: promise, reason: value });
+        } else if ((console = global.console) && console.error) {
+          console.error('Unhandled promise rejection', value);
+        }
+      });
+      // Browsers should not trigger `rejectionHandled` event if it was handled here, NodeJS - should
+      promise._h = isNode || isUnhandled(promise) ? 2 : 1;
+    } promise._a = undefined;
+    if (unhandled && result.e) throw result.v;
+  });
+};
+var isUnhandled = function (promise) {
+  if (promise._h == 1) return false;
+  var chain = promise._a || promise._c;
+  var i = 0;
+  var reaction;
+  while (chain.length > i) {
+    reaction = chain[i++];
+    if (reaction.fail || !isUnhandled(reaction.promise)) return false;
+  } return true;
+};
+var onHandleUnhandled = function (promise) {
+  task.call(global, function () {
+    var handler;
+    if (isNode) {
+      process.emit('rejectionHandled', promise);
+    } else if (handler = global.onrejectionhandled) {
+      handler({ promise: promise, reason: promise._v });
+    }
+  });
+};
+var $reject = function (value) {
+  var promise = this;
+  if (promise._d) return;
+  promise._d = true;
+  promise = promise._w || promise; // unwrap
+  promise._v = value;
+  promise._s = 2;
+  if (!promise._a) promise._a = promise._c.slice();
+  notify(promise, true);
+};
+var $resolve = function (value) {
+  var promise = this;
+  var then;
+  if (promise._d) return;
+  promise._d = true;
+  promise = promise._w || promise; // unwrap
+  try {
+    if (promise === value) throw TypeError("Promise can't be resolved itself");
+    if (then = isThenable(value)) {
+      microtask(function () {
+        var wrapper = { _w: promise, _d: false }; // wrap
+        try {
+          then.call(value, ctx($resolve, wrapper, 1), ctx($reject, wrapper, 1));
+        } catch (e) {
+          $reject.call(wrapper, e);
+        }
+      });
+    } else {
+      promise._v = value;
+      promise._s = 1;
+      notify(promise, false);
+    }
+  } catch (e) {
+    $reject.call({ _w: promise, _d: false }, e); // wrap
+  }
+};
+
+// constructor polyfill
+if (!USE_NATIVE) {
+  // 25.4.3.1 Promise(executor)
+  $Promise = function Promise(executor) {
+    anInstance(this, $Promise, PROMISE, '_h');
+    aFunction(executor);
+    Internal.call(this);
+    try {
+      executor(ctx($resolve, this, 1), ctx($reject, this, 1));
+    } catch (err) {
+      $reject.call(this, err);
+    }
+  };
+  // eslint-disable-next-line no-unused-vars
+  Internal = function Promise(executor) {
+    this._c = [];             // <- awaiting reactions
+    this._a = undefined;      // <- checked in isUnhandled reactions
+    this._s = 0;              // <- state
+    this._d = false;          // <- done
+    this._v = undefined;      // <- value
+    this._h = 0;              // <- rejection state, 0 - default, 1 - handled, 2 - unhandled
+    this._n = false;          // <- notify
+  };
+  Internal.prototype = require('./_redefine-all')($Promise.prototype, {
+    // 25.4.5.3 Promise.prototype.then(onFulfilled, onRejected)
+    then: function then(onFulfilled, onRejected) {
+      var reaction = newPromiseCapability(speciesConstructor(this, $Promise));
+      reaction.ok = typeof onFulfilled == 'function' ? onFulfilled : true;
+      reaction.fail = typeof onRejected == 'function' && onRejected;
+      reaction.domain = isNode ? process.domain : undefined;
+      this._c.push(reaction);
+      if (this._a) this._a.push(reaction);
+      if (this._s) notify(this, false);
+      return reaction.promise;
+    },
+    // 25.4.5.1 Promise.prototype.catch(onRejected)
+    'catch': function (onRejected) {
+      return this.then(undefined, onRejected);
+    }
+  });
+  OwnPromiseCapability = function () {
+    var promise = new Internal();
+    this.promise = promise;
+    this.resolve = ctx($resolve, promise, 1);
+    this.reject = ctx($reject, promise, 1);
+  };
+  newPromiseCapabilityModule.f = newPromiseCapability = function (C) {
+    return C === $Promise || C === Wrapper
+      ? new OwnPromiseCapability(C)
+      : newGenericPromiseCapability(C);
+  };
+}
+
+$export($export.G + $export.W + $export.F * !USE_NATIVE, { Promise: $Promise });
+require('./_set-to-string-tag')($Promise, PROMISE);
+require('./_set-species')(PROMISE);
+Wrapper = require('./_core')[PROMISE];
+
+// statics
+$export($export.S + $export.F * !USE_NATIVE, PROMISE, {
+  // 25.4.4.5 Promise.reject(r)
+  reject: function reject(r) {
+    var capability = newPromiseCapability(this);
+    var $$reject = capability.reject;
+    $$reject(r);
+    return capability.promise;
+  }
+});
+$export($export.S + $export.F * (LIBRARY || !USE_NATIVE), PROMISE, {
+  // 25.4.4.6 Promise.resolve(x)
+  resolve: function resolve(x) {
+    return promiseResolve(LIBRARY && this === Wrapper ? $Promise : this, x);
+  }
+});
+$export($export.S + $export.F * !(USE_NATIVE && require('./_iter-detect')(function (iter) {
+  $Promise.all(iter)['catch'](empty);
+})), PROMISE, {
+  // 25.4.4.1 Promise.all(iterable)
+  all: function all(iterable) {
+    var C = this;
+    var capability = newPromiseCapability(C);
+    var resolve = capability.resolve;
+    var reject = capability.reject;
+    var result = perform(function () {
+      var values = [];
+      var index = 0;
+      var remaining = 1;
+      forOf(iterable, false, function (promise) {
+        var $index = index++;
+        var alreadyCalled = false;
+        values.push(undefined);
+        remaining++;
+        C.resolve(promise).then(function (value) {
+          if (alreadyCalled) return;
+          alreadyCalled = true;
+          values[$index] = value;
+          --remaining || resolve(values);
+        }, reject);
+      });
+      --remaining || resolve(values);
+    });
+    if (result.e) reject(result.v);
+    return capability.promise;
+  },
+  // 25.4.4.4 Promise.race(iterable)
+  race: function race(iterable) {
+    var C = this;
+    var capability = newPromiseCapability(C);
+    var reject = capability.reject;
+    var result = perform(function () {
+      forOf(iterable, false, function (promise) {
+        C.resolve(promise).then(capability.resolve, reject);
+      });
+    });
+    if (result.e) reject(result.v);
+    return capability.promise;
+  }
+});
diff --git a/js/lib/core-js/es6.set.js b/js/lib/core-js/es6.set.js
new file mode 100644
index 00000000000..55b8bdd89b6
--- /dev/null
+++ b/js/lib/core-js/es6.set.js
@@ -0,0 +1,14 @@
+'use strict';
+var strong = require('./_collection-strong');
+var validate = require('./_validate-collection');
+var SET = 'Set';
+
+// 23.2 Set Objects
+module.exports = require('./_collection')(SET, function (get) {
+  return function Set() { return get(this, arguments.length > 0 ? arguments[0] : undefined); };
+}, {
+  // 23.2.3.1 Set.prototype.add(value)
+  add: function add(value) {
+    return strong.def(validate(this, SET), value = value === 0 ? 0 : value, value);
+  }
+}, strong);
diff --git a/js/lib/core-js/es6.weak-map.js b/js/lib/core-js/es6.weak-map.js
new file mode 100644
index 00000000000..f21556d7c96
--- /dev/null
+++ b/js/lib/core-js/es6.weak-map.js
@@ -0,0 +1,59 @@
+'use strict';
+var each = require('./_array-methods')(0);
+var redefine = require('./_redefine');
+var meta = require('./_meta');
+var assign = require('./_object-assign');
+var weak = require('./_collection-weak');
+var isObject = require('./_is-object');
+var fails = require('./_fails');
+var validate = require('./_validate-collection');
+var WEAK_MAP = 'WeakMap';
+var getWeak = meta.getWeak;
+var isExtensible = Object.isExtensible;
+var uncaughtFrozenStore = weak.ufstore;
+var tmp = {};
+var InternalMap;
+
+var wrapper = function (get) {
+  return function WeakMap() {
+    return get(this, arguments.length > 0 ? arguments[0] : undefined);
+  };
+};
+
+var methods = {
+  // 23.3.3.3 WeakMap.prototype.get(key)
+  get: function get(key) {
+    if (isObject(key)) {
+      var data = getWeak(key);
+      if (data === true) return uncaughtFrozenStore(validate(this, WEAK_MAP)).get(key);
+      return data ? data[this._i] : undefined;
+    }
+  },
+  // 23.3.3.5 WeakMap.prototype.set(key, value)
+  set: function set(key, value) {
+    return weak.def(validate(this, WEAK_MAP), key, value);
+  }
+};
+
+// 23.3 WeakMap Objects
+var $WeakMap = module.exports = require('./_collection')(WEAK_MAP, wrapper, methods, weak, true, true);
+
+// IE11 WeakMap frozen keys fix
+if (fails(function () { return new $WeakMap().set((Object.freeze || Object)(tmp), 7).get(tmp) != 7; })) {
+  InternalMap = weak.getConstructor(wrapper, WEAK_MAP);
+  assign(InternalMap.prototype, methods);
+  meta.NEED = true;
+  each(['delete', 'has', 'get', 'set'], function (key) {
+    var proto = $WeakMap.prototype;
+    var method = proto[key];
+    redefine(proto, key, function (a, b) {
+      // store frozen objects on internal weakmap shim
+      if (isObject(a) && !isExtensible(a)) {
+        if (!this._f) this._f = new InternalMap();
+        var result = this._f[key](a, b);
+        return key == 'set' ? this : result;
+      // store all the rest on native weakmap
+      } return method.call(this, a, b);
+    });
+  });
+}
diff --git a/js/lib/core-js/es7.array.flat-map.js b/js/lib/core-js/es7.array.flat-map.js
new file mode 100644
index 00000000000..2a210cd3558
--- /dev/null
+++ b/js/lib/core-js/es7.array.flat-map.js
@@ -0,0 +1,22 @@
+'use strict';
+// https://tc39.github.io/proposal-flatMap/#sec-Array.prototype.flatMap
+var $export = require('./_export');
+var flattenIntoArray = require('./_flatten-into-array');
+var toObject = require('./_to-object');
+var toLength = require('./_to-length');
+var aFunction = require('./_a-function');
+var arraySpeciesCreate = require('./_array-species-create');
+
+$export($export.P, 'Array', {
+  flatMap: function flatMap(callbackfn /* , thisArg */) {
+    var O = toObject(this);
+    var sourceLen, A;
+    aFunction(callbackfn);
+    sourceLen = toLength(O.length);
+    A = arraySpeciesCreate(O, 0);
+    flattenIntoArray(A, O, O, sourceLen, 0, 1, callbackfn, arguments[1]);
+    return A;
+  }
+});
+
+require('./_add-to-unscopables')('flatMap');
diff --git a/js/lib/core-js/es7.array.flatten.js b/js/lib/core-js/es7.array.flatten.js
new file mode 100644
index 00000000000..9019b2d1c0a
--- /dev/null
+++ b/js/lib/core-js/es7.array.flatten.js
@@ -0,0 +1,21 @@
+'use strict';
+// https://tc39.github.io/proposal-flatMap/#sec-Array.prototype.flatten
+var $export = require('./_export');
+var flattenIntoArray = require('./_flatten-into-array');
+var toObject = require('./_to-object');
+var toLength = require('./_to-length');
+var toInteger = require('./_to-integer');
+var arraySpeciesCreate = require('./_array-species-create');
+
+$export($export.P, 'Array', {
+  flatten: function flatten(/* depthArg = 1 */) {
+    var depthArg = arguments[0];
+    var O = toObject(this);
+    var sourceLen = toLength(O.length);
+    var A = arraySpeciesCreate(O, 0);
+    flattenIntoArray(A, O, O, sourceLen, 0, depthArg === undefined ? 1 : toInteger(depthArg));
+    return A;
+  }
+});
+
+require('./_add-to-unscopables')('flatten');
diff --git a/js/lib/core-js/es7.asap.js b/js/lib/core-js/es7.asap.js
new file mode 100644
index 00000000000..d36f7c76087
--- /dev/null
+++ b/js/lib/core-js/es7.asap.js
@@ -0,0 +1,12 @@
+// https://github.com/rwaldron/tc39-notes/blob/master/es6/2014-09/sept-25.md#510-globalasap-for-enqueuing-a-microtask
+var $export = require('./_export');
+var microtask = require('./_microtask')();
+var process = require('./_global').process;
+var isNode = require('./_cof')(process) == 'process';
+
+$export($export.G, {
+  asap: function asap(fn) {
+    var domain = isNode && process.domain;
+    microtask(domain ? domain.bind(fn) : fn);
+  }
+});
diff --git a/js/lib/core-js/es7.error.is-error.js b/js/lib/core-js/es7.error.is-error.js
new file mode 100644
index 00000000000..ba94f5d1374
--- /dev/null
+++ b/js/lib/core-js/es7.error.is-error.js
@@ -0,0 +1,9 @@
+// https://github.com/ljharb/proposal-is-error
+var $export = require('./_export');
+var cof = require('./_cof');
+
+$export($export.S, 'Error', {
+  isError: function isError(it) {
+    return cof(it) === 'Error';
+  }
+});
diff --git a/js/lib/core-js/es7.global.js b/js/lib/core-js/es7.global.js
new file mode 100644
index 00000000000..a315fd43002
--- /dev/null
+++ b/js/lib/core-js/es7.global.js
@@ -0,0 +1,4 @@
+// https://github.com/tc39/proposal-global
+var $export = require('./_export');
+
+$export($export.G, { global: require('./_global') });
diff --git a/js/lib/core-js/es7.map.from.js b/js/lib/core-js/es7.map.from.js
new file mode 100644
index 00000000000..a60573704e6
--- /dev/null
+++ b/js/lib/core-js/es7.map.from.js
@@ -0,0 +1,2 @@
+// https://tc39.github.io/proposal-setmap-offrom/#sec-map.from
+require('./_set-collection-from')('Map');
diff --git a/js/lib/core-js/es7.map.of.js b/js/lib/core-js/es7.map.of.js
new file mode 100644
index 00000000000..a2bf1fef707
--- /dev/null
+++ b/js/lib/core-js/es7.map.of.js
@@ -0,0 +1,2 @@
+// https://tc39.github.io/proposal-setmap-offrom/#sec-map.of
+require('./_set-collection-of')('Map');
diff --git a/js/lib/core-js/es7.map.to-json.js b/js/lib/core-js/es7.map.to-json.js
new file mode 100644
index 00000000000..95a3569fa42
--- /dev/null
+++ b/js/lib/core-js/es7.map.to-json.js
@@ -0,0 +1,4 @@
+// https://github.com/DavidBruant/Map-Set.prototype.toJSON
+var $export = require('./_export');
+
+$export($export.P + $export.R, 'Map', { toJSON: require('./_collection-to-json')('Map') });
diff --git a/js/lib/core-js/es7.object.define-getter.js b/js/lib/core-js/es7.object.define-getter.js
new file mode 100644
index 00000000000..ffc6203fd1d
--- /dev/null
+++ b/js/lib/core-js/es7.object.define-getter.js
@@ -0,0 +1,12 @@
+'use strict';
+var $export = require('./_export');
+var toObject = require('./_to-object');
+var aFunction = require('./_a-function');
+var $defineProperty = require('./_object-dp');
+
+// B.2.2.2 Object.prototype.__defineGetter__(P, getter)
+require('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {
+  __defineGetter__: function __defineGetter__(P, getter) {
+    $defineProperty.f(toObject(this), P, { get: aFunction(getter), enumerable: true, configurable: true });
+  }
+});
diff --git a/js/lib/core-js/es7.object.define-setter.js b/js/lib/core-js/es7.object.define-setter.js
new file mode 100644
index 00000000000..8ceefdd68e3
--- /dev/null
+++ b/js/lib/core-js/es7.object.define-setter.js
@@ -0,0 +1,12 @@
+'use strict';
+var $export = require('./_export');
+var toObject = require('./_to-object');
+var aFunction = require('./_a-function');
+var $defineProperty = require('./_object-dp');
+
+// B.2.2.3 Object.prototype.__defineSetter__(P, setter)
+require('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {
+  __defineSetter__: function __defineSetter__(P, setter) {
+    $defineProperty.f(toObject(this), P, { set: aFunction(setter), enumerable: true, configurable: true });
+  }
+});
diff --git a/js/lib/core-js/es7.object.entries.js b/js/lib/core-js/es7.object.entries.js
new file mode 100644
index 00000000000..2f83437c8c4
--- /dev/null
+++ b/js/lib/core-js/es7.object.entries.js
@@ -0,0 +1,9 @@
+// https://github.com/tc39/proposal-object-values-entries
+var $export = require('./_export');
+var $entries = require('./_object-to-array')(true);
+
+$export($export.S, 'Object', {
+  entries: function entries(it) {
+    return $entries(it);
+  }
+});
diff --git a/js/lib/core-js/es7.object.get-own-property-descriptors.js b/js/lib/core-js/es7.object.get-own-property-descriptors.js
new file mode 100644
index 00000000000..b1ab72fde5c
--- /dev/null
+++ b/js/lib/core-js/es7.object.get-own-property-descriptors.js
@@ -0,0 +1,22 @@
+// https://github.com/tc39/proposal-object-getownpropertydescriptors
+var $export = require('./_export');
+var ownKeys = require('./_own-keys');
+var toIObject = require('./_to-iobject');
+var gOPD = require('./_object-gopd');
+var createProperty = require('./_create-property');
+
+$export($export.S, 'Object', {
+  getOwnPropertyDescriptors: function getOwnPropertyDescriptors(object) {
+    var O = toIObject(object);
+    var getDesc = gOPD.f;
+    var keys = ownKeys(O);
+    var result = {};
+    var i = 0;
+    var key, desc;
+    while (keys.length > i) {
+      desc = getDesc(O, key = keys[i++]);
+      if (desc !== undefined) createProperty(result, key, desc);
+    }
+    return result;
+  }
+});
diff --git a/js/lib/core-js/es7.object.lookup-getter.js b/js/lib/core-js/es7.object.lookup-getter.js
new file mode 100644
index 00000000000..f8022291644
--- /dev/null
+++ b/js/lib/core-js/es7.object.lookup-getter.js
@@ -0,0 +1,18 @@
+'use strict';
+var $export = require('./_export');
+var toObject = require('./_to-object');
+var toPrimitive = require('./_to-primitive');
+var getPrototypeOf = require('./_object-gpo');
+var getOwnPropertyDescriptor = require('./_object-gopd').f;
+
+// B.2.2.4 Object.prototype.__lookupGetter__(P)
+require('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {
+  __lookupGetter__: function __lookupGetter__(P) {
+    var O = toObject(this);
+    var K = toPrimitive(P, true);
+    var D;
+    do {
+      if (D = getOwnPropertyDescriptor(O, K)) return D.get;
+    } while (O = getPrototypeOf(O));
+  }
+});
diff --git a/js/lib/core-js/es7.object.lookup-setter.js b/js/lib/core-js/es7.object.lookup-setter.js
new file mode 100644
index 00000000000..8bf8b64eab9
--- /dev/null
+++ b/js/lib/core-js/es7.object.lookup-setter.js
@@ -0,0 +1,18 @@
+'use strict';
+var $export = require('./_export');
+var toObject = require('./_to-object');
+var toPrimitive = require('./_to-primitive');
+var getPrototypeOf = require('./_object-gpo');
+var getOwnPropertyDescriptor = require('./_object-gopd').f;
+
+// B.2.2.5 Object.prototype.__lookupSetter__(P)
+require('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {
+  __lookupSetter__: function __lookupSetter__(P) {
+    var O = toObject(this);
+    var K = toPrimitive(P, true);
+    var D;
+    do {
+      if (D = getOwnPropertyDescriptor(O, K)) return D.set;
+    } while (O = getPrototypeOf(O));
+  }
+});
diff --git a/js/lib/core-js/es7.object.values.js b/js/lib/core-js/es7.object.values.js
new file mode 100644
index 00000000000..d6f09527593
--- /dev/null
+++ b/js/lib/core-js/es7.object.values.js
@@ -0,0 +1,9 @@
+// https://github.com/tc39/proposal-object-values-entries
+var $export = require('./_export');
+var $values = require('./_object-to-array')(false);
+
+$export($export.S, 'Object', {
+  values: function values(it) {
+    return $values(it);
+  }
+});
diff --git a/js/lib/core-js/es7.observable.js b/js/lib/core-js/es7.observable.js
new file mode 100644
index 00000000000..7bab53d0846
--- /dev/null
+++ b/js/lib/core-js/es7.observable.js
@@ -0,0 +1,199 @@
+'use strict';
+// https://github.com/zenparsing/es-observable
+var $export = require('./_export');
+var global = require('./_global');
+var core = require('./_core');
+var microtask = require('./_microtask')();
+var OBSERVABLE = require('./_wks')('observable');
+var aFunction = require('./_a-function');
+var anObject = require('./_an-object');
+var anInstance = require('./_an-instance');
+var redefineAll = require('./_redefine-all');
+var hide = require('./_hide');
+var forOf = require('./_for-of');
+var RETURN = forOf.RETURN;
+
+var getMethod = function (fn) {
+  return fn == null ? undefined : aFunction(fn);
+};
+
+var cleanupSubscription = function (subscription) {
+  var cleanup = subscription._c;
+  if (cleanup) {
+    subscription._c = undefined;
+    cleanup();
+  }
+};
+
+var subscriptionClosed = function (subscription) {
+  return subscription._o === undefined;
+};
+
+var closeSubscription = function (subscription) {
+  if (!subscriptionClosed(subscription)) {
+    subscription._o = undefined;
+    cleanupSubscription(subscription);
+  }
+};
+
+var Subscription = function (observer, subscriber) {
+  anObject(observer);
+  this._c = undefined;
+  this._o = observer;
+  observer = new SubscriptionObserver(this);
+  try {
+    var cleanup = subscriber(observer);
+    var subscription = cleanup;
+    if (cleanup != null) {
+      if (typeof cleanup.unsubscribe === 'function') cleanup = function () { subscription.unsubscribe(); };
+      else aFunction(cleanup);
+      this._c = cleanup;
+    }
+  } catch (e) {
+    observer.error(e);
+    return;
+  } if (subscriptionClosed(this)) cleanupSubscription(this);
+};
+
+Subscription.prototype = redefineAll({}, {
+  unsubscribe: function unsubscribe() { closeSubscription(this); }
+});
+
+var SubscriptionObserver = function (subscription) {
+  this._s = subscription;
+};
+
+SubscriptionObserver.prototype = redefineAll({}, {
+  next: function next(value) {
+    var subscription = this._s;
+    if (!subscriptionClosed(subscription)) {
+      var observer = subscription._o;
+      try {
+        var m = getMethod(observer.next);
+        if (m) return m.call(observer, value);
+      } catch (e) {
+        try {
+          closeSubscription(subscription);
+        } finally {
+          throw e;
+        }
+      }
+    }
+  },
+  error: function error(value) {
+    var subscription = this._s;
+    if (subscriptionClosed(subscription)) throw value;
+    var observer = subscription._o;
+    subscription._o = undefined;
+    try {
+      var m = getMethod(observer.error);
+      if (!m) throw value;
+      value = m.call(observer, value);
+    } catch (e) {
+      try {
+        cleanupSubscription(subscription);
+      } finally {
+        throw e;
+      }
+    } cleanupSubscription(subscription);
+    return value;
+  },
+  complete: function complete(value) {
+    var subscription = this._s;
+    if (!subscriptionClosed(subscription)) {
+      var observer = subscription._o;
+      subscription._o = undefined;
+      try {
+        var m = getMethod(observer.complete);
+        value = m ? m.call(observer, value) : undefined;
+      } catch (e) {
+        try {
+          cleanupSubscription(subscription);
+        } finally {
+          throw e;
+        }
+      } cleanupSubscription(subscription);
+      return value;
+    }
+  }
+});
+
+var $Observable = function Observable(subscriber) {
+  anInstance(this, $Observable, 'Observable', '_f')._f = aFunction(subscriber);
+};
+
+redefineAll($Observable.prototype, {
+  subscribe: function subscribe(observer) {
+    return new Subscription(observer, this._f);
+  },
+  forEach: function forEach(fn) {
+    var that = this;
+    return new (core.Promise || global.Promise)(function (resolve, reject) {
+      aFunction(fn);
+      var subscription = that.subscribe({
+        next: function (value) {
+          try {
+            return fn(value);
+          } catch (e) {
+            reject(e);
+            subscription.unsubscribe();
+          }
+        },
+        error: reject,
+        complete: resolve
+      });
+    });
+  }
+});
+
+redefineAll($Observable, {
+  from: function from(x) {
+    var C = typeof this === 'function' ? this : $Observable;
+    var method = getMethod(anObject(x)[OBSERVABLE]);
+    if (method) {
+      var observable = anObject(method.call(x));
+      return observable.constructor === C ? observable : new C(function (observer) {
+        return observable.subscribe(observer);
+      });
+    }
+    return new C(function (observer) {
+      var done = false;
+      microtask(function () {
+        if (!done) {
+          try {
+            if (forOf(x, false, function (it) {
+              observer.next(it);
+              if (done) return RETURN;
+            }) === RETURN) return;
+          } catch (e) {
+            if (done) throw e;
+            observer.error(e);
+            return;
+          } observer.complete();
+        }
+      });
+      return function () { done = true; };
+    });
+  },
+  of: function of() {
+    for (var i = 0, l = arguments.length, items = Array(l); i < l;) items[i] = arguments[i++];
+    return new (typeof this === 'function' ? this : $Observable)(function (observer) {
+      var done = false;
+      microtask(function () {
+        if (!done) {
+          for (var j = 0; j < items.length; ++j) {
+            observer.next(items[j]);
+            if (done) return;
+          } observer.complete();
+        }
+      });
+      return function () { done = true; };
+    });
+  }
+});
+
+hide($Observable.prototype, OBSERVABLE, function () { return this; });
+
+$export($export.G, { Observable: $Observable });
+
+require('./_set-species')('Observable');
diff --git a/js/lib/core-js/es7.promise.finally.js b/js/lib/core-js/es7.promise.finally.js
new file mode 100644
index 00000000000..fa04b63998f
--- /dev/null
+++ b/js/lib/core-js/es7.promise.finally.js
@@ -0,0 +1,20 @@
+// https://github.com/tc39/proposal-promise-finally
+'use strict';
+var $export = require('./_export');
+var core = require('./_core');
+var global = require('./_global');
+var speciesConstructor = require('./_species-constructor');
+var promiseResolve = require('./_promise-resolve');
+
+$export($export.P + $export.R, 'Promise', { 'finally': function (onFinally) {
+  var C = speciesConstructor(this, core.Promise || global.Promise);
+  var isFunction = typeof onFinally == 'function';
+  return this.then(
+    isFunction ? function (x) {
+      return promiseResolve(C, onFinally()).then(function () { return x; });
+    } : onFinally,
+    isFunction ? function (e) {
+      return promiseResolve(C, onFinally()).then(function () { throw e; });
+    } : onFinally
+  );
+} });
diff --git a/js/lib/core-js/es7.promise.try.js b/js/lib/core-js/es7.promise.try.js
new file mode 100644
index 00000000000..e8163720b67
--- /dev/null
+++ b/js/lib/core-js/es7.promise.try.js
@@ -0,0 +1,12 @@
+'use strict';
+// https://github.com/tc39/proposal-promise-try
+var $export = require('./_export');
+var newPromiseCapability = require('./_new-promise-capability');
+var perform = require('./_perform');
+
+$export($export.S, 'Promise', { 'try': function (callbackfn) {
+  var promiseCapability = newPromiseCapability.f(this);
+  var result = perform(callbackfn);
+  (result.e ? promiseCapability.reject : promiseCapability.resolve)(result.v);
+  return promiseCapability.promise;
+} });
diff --git a/js/lib/core-js/es7.reflect.define-metadata.js b/js/lib/core-js/es7.reflect.define-metadata.js
new file mode 100644
index 00000000000..ebef52c24df
--- /dev/null
+++ b/js/lib/core-js/es7.reflect.define-metadata.js
@@ -0,0 +1,8 @@
+var metadata = require('./_metadata');
+var anObject = require('./_an-object');
+var toMetaKey = metadata.key;
+var ordinaryDefineOwnMetadata = metadata.set;
+
+metadata.exp({ defineMetadata: function defineMetadata(metadataKey, metadataValue, target, targetKey) {
+  ordinaryDefineOwnMetadata(metadataKey, metadataValue, anObject(target), toMetaKey(targetKey));
+} });
diff --git a/js/lib/core-js/es7.reflect.delete-metadata.js b/js/lib/core-js/es7.reflect.delete-metadata.js
new file mode 100644
index 00000000000..590ed53ce34
--- /dev/null
+++ b/js/lib/core-js/es7.reflect.delete-metadata.js
@@ -0,0 +1,15 @@
+var metadata = require('./_metadata');
+var anObject = require('./_an-object');
+var toMetaKey = metadata.key;
+var getOrCreateMetadataMap = metadata.map;
+var store = metadata.store;
+
+metadata.exp({ deleteMetadata: function deleteMetadata(metadataKey, target /* , targetKey */) {
+  var targetKey = arguments.length < 3 ? undefined : toMetaKey(arguments[2]);
+  var metadataMap = getOrCreateMetadataMap(anObject(target), targetKey, false);
+  if (metadataMap === undefined || !metadataMap['delete'](metadataKey)) return false;
+  if (metadataMap.size) return true;
+  var targetMetadata = store.get(target);
+  targetMetadata['delete'](targetKey);
+  return !!targetMetadata.size || store['delete'](target);
+} });
diff --git a/js/lib/core-js/es7.reflect.get-metadata-keys.js b/js/lib/core-js/es7.reflect.get-metadata-keys.js
new file mode 100644
index 00000000000..f344172b5c0
--- /dev/null
+++ b/js/lib/core-js/es7.reflect.get-metadata-keys.js
@@ -0,0 +1,19 @@
+var Set = require('./es6.set');
+var from = require('./_array-from-iterable');
+var metadata = require('./_metadata');
+var anObject = require('./_an-object');
+var getPrototypeOf = require('./_object-gpo');
+var ordinaryOwnMetadataKeys = metadata.keys;
+var toMetaKey = metadata.key;
+
+var ordinaryMetadataKeys = function (O, P) {
+  var oKeys = ordinaryOwnMetadataKeys(O, P);
+  var parent = getPrototypeOf(O);
+  if (parent === null) return oKeys;
+  var pKeys = ordinaryMetadataKeys(parent, P);
+  return pKeys.length ? oKeys.length ? from(new Set(oKeys.concat(pKeys))) : pKeys : oKeys;
+};
+
+metadata.exp({ getMetadataKeys: function getMetadataKeys(target /* , targetKey */) {
+  return ordinaryMetadataKeys(anObject(target), arguments.length < 2 ? undefined : toMetaKey(arguments[1]));
+} });
diff --git a/js/lib/core-js/es7.reflect.get-metadata.js b/js/lib/core-js/es7.reflect.get-metadata.js
new file mode 100644
index 00000000000..58c278e98ed
--- /dev/null
+++ b/js/lib/core-js/es7.reflect.get-metadata.js
@@ -0,0 +1,17 @@
+var metadata = require('./_metadata');
+var anObject = require('./_an-object');
+var getPrototypeOf = require('./_object-gpo');
+var ordinaryHasOwnMetadata = metadata.has;
+var ordinaryGetOwnMetadata = metadata.get;
+var toMetaKey = metadata.key;
+
+var ordinaryGetMetadata = function (MetadataKey, O, P) {
+  var hasOwn = ordinaryHasOwnMetadata(MetadataKey, O, P);
+  if (hasOwn) return ordinaryGetOwnMetadata(MetadataKey, O, P);
+  var parent = getPrototypeOf(O);
+  return parent !== null ? ordinaryGetMetadata(MetadataKey, parent, P) : undefined;
+};
+
+metadata.exp({ getMetadata: function getMetadata(metadataKey, target /* , targetKey */) {
+  return ordinaryGetMetadata(metadataKey, anObject(target), arguments.length < 3 ? undefined : toMetaKey(arguments[2]));
+} });
diff --git a/js/lib/core-js/es7.reflect.get-own-metadata-keys.js b/js/lib/core-js/es7.reflect.get-own-metadata-keys.js
new file mode 100644
index 00000000000..03e3201bbea
--- /dev/null
+++ b/js/lib/core-js/es7.reflect.get-own-metadata-keys.js
@@ -0,0 +1,8 @@
+var metadata = require('./_metadata');
+var anObject = require('./_an-object');
+var ordinaryOwnMetadataKeys = metadata.keys;
+var toMetaKey = metadata.key;
+
+metadata.exp({ getOwnMetadataKeys: function getOwnMetadataKeys(target /* , targetKey */) {
+  return ordinaryOwnMetadataKeys(anObject(target), arguments.length < 2 ? undefined : toMetaKey(arguments[1]));
+} });
diff --git a/js/lib/core-js/es7.reflect.get-own-metadata.js b/js/lib/core-js/es7.reflect.get-own-metadata.js
new file mode 100644
index 00000000000..4a18b07176a
--- /dev/null
+++ b/js/lib/core-js/es7.reflect.get-own-metadata.js
@@ -0,0 +1,9 @@
+var metadata = require('./_metadata');
+var anObject = require('./_an-object');
+var ordinaryGetOwnMetadata = metadata.get;
+var toMetaKey = metadata.key;
+
+metadata.exp({ getOwnMetadata: function getOwnMetadata(metadataKey, target /* , targetKey */) {
+  return ordinaryGetOwnMetadata(metadataKey, anObject(target)
+    , arguments.length < 3 ? undefined : toMetaKey(arguments[2]));
+} });
diff --git a/js/lib/core-js/es7.reflect.has-metadata.js b/js/lib/core-js/es7.reflect.has-metadata.js
new file mode 100644
index 00000000000..b934bb4ecb7
--- /dev/null
+++ b/js/lib/core-js/es7.reflect.has-metadata.js
@@ -0,0 +1,16 @@
+var metadata = require('./_metadata');
+var anObject = require('./_an-object');
+var getPrototypeOf = require('./_object-gpo');
+var ordinaryHasOwnMetadata = metadata.has;
+var toMetaKey = metadata.key;
+
+var ordinaryHasMetadata = function (MetadataKey, O, P) {
+  var hasOwn = ordinaryHasOwnMetadata(MetadataKey, O, P);
+  if (hasOwn) return true;
+  var parent = getPrototypeOf(O);
+  return parent !== null ? ordinaryHasMetadata(MetadataKey, parent, P) : false;
+};
+
+metadata.exp({ hasMetadata: function hasMetadata(metadataKey, target /* , targetKey */) {
+  return ordinaryHasMetadata(metadataKey, anObject(target), arguments.length < 3 ? undefined : toMetaKey(arguments[2]));
+} });
diff --git a/js/lib/core-js/es7.reflect.has-own-metadata.js b/js/lib/core-js/es7.reflect.has-own-metadata.js
new file mode 100644
index 00000000000..512850dd8fe
--- /dev/null
+++ b/js/lib/core-js/es7.reflect.has-own-metadata.js
@@ -0,0 +1,9 @@
+var metadata = require('./_metadata');
+var anObject = require('./_an-object');
+var ordinaryHasOwnMetadata = metadata.has;
+var toMetaKey = metadata.key;
+
+metadata.exp({ hasOwnMetadata: function hasOwnMetadata(metadataKey, target /* , targetKey */) {
+  return ordinaryHasOwnMetadata(metadataKey, anObject(target)
+    , arguments.length < 3 ? undefined : toMetaKey(arguments[2]));
+} });
diff --git a/js/lib/core-js/es7.reflect.metadata.js b/js/lib/core-js/es7.reflect.metadata.js
new file mode 100644
index 00000000000..efb9a9e2661
--- /dev/null
+++ b/js/lib/core-js/es7.reflect.metadata.js
@@ -0,0 +1,15 @@
+var $metadata = require('./_metadata');
+var anObject = require('./_an-object');
+var aFunction = require('./_a-function');
+var toMetaKey = $metadata.key;
+var ordinaryDefineOwnMetadata = $metadata.set;
+
+$metadata.exp({ metadata: function metadata(metadataKey, metadataValue) {
+  return function decorator(target, targetKey) {
+    ordinaryDefineOwnMetadata(
+      metadataKey, metadataValue,
+      (targetKey !== undefined ? anObject : aFunction)(target),
+      toMetaKey(targetKey)
+    );
+  };
+} });
diff --git a/js/lib/core-js/es7.set.from.js b/js/lib/core-js/es7.set.from.js
new file mode 100644
index 00000000000..26542b6644f
--- /dev/null
+++ b/js/lib/core-js/es7.set.from.js
@@ -0,0 +1,2 @@
+// https://tc39.github.io/proposal-setmap-offrom/#sec-set.from
+require('./_set-collection-from')('Set');
diff --git a/js/lib/core-js/es7.set.of.js b/js/lib/core-js/es7.set.of.js
new file mode 100644
index 00000000000..2a50ad911a8
--- /dev/null
+++ b/js/lib/core-js/es7.set.of.js
@@ -0,0 +1,2 @@
+// https://tc39.github.io/proposal-setmap-offrom/#sec-set.of
+require('./_set-collection-of')('Set');
diff --git a/js/lib/core-js/es7.set.to-json.js b/js/lib/core-js/es7.set.to-json.js
new file mode 100644
index 00000000000..95cbcfa51b5
--- /dev/null
+++ b/js/lib/core-js/es7.set.to-json.js
@@ -0,0 +1,4 @@
+// https://github.com/DavidBruant/Map-Set.prototype.toJSON
+var $export = require('./_export');
+
+$export($export.P + $export.R, 'Set', { toJSON: require('./_collection-to-json')('Set') });
diff --git a/js/lib/core-js/es7.string.at.js b/js/lib/core-js/es7.string.at.js
new file mode 100644
index 00000000000..8b3ab98db42
--- /dev/null
+++ b/js/lib/core-js/es7.string.at.js
@@ -0,0 +1,10 @@
+'use strict';
+// https://github.com/mathiasbynens/String.prototype.at
+var $export = require('./_export');
+var $at = require('./_string-at')(true);
+
+$export($export.P, 'String', {
+  at: function at(pos) {
+    return $at(this, pos);
+  }
+});
diff --git a/js/lib/core-js/es7.string.match-all.js b/js/lib/core-js/es7.string.match-all.js
new file mode 100644
index 00000000000..78237036e8f
--- /dev/null
+++ b/js/lib/core-js/es7.string.match-all.js
@@ -0,0 +1,30 @@
+'use strict';
+// https://tc39.github.io/String.prototype.matchAll/
+var $export = require('./_export');
+var defined = require('./_defined');
+var toLength = require('./_to-length');
+var isRegExp = require('./_is-regexp');
+var getFlags = require('./_flags');
+var RegExpProto = RegExp.prototype;
+
+var $RegExpStringIterator = function (regexp, string) {
+  this._r = regexp;
+  this._s = string;
+};
+
+require('./_iter-create')($RegExpStringIterator, 'RegExp String', function next() {
+  var match = this._r.exec(this._s);
+  return { value: match, done: match === null };
+});
+
+$export($export.P, 'String', {
+  matchAll: function matchAll(regexp) {
+    defined(this);
+    if (!isRegExp(regexp)) throw TypeError(regexp + ' is not a regexp!');
+    var S = String(this);
+    var flags = 'flags' in RegExpProto ? String(regexp.flags) : getFlags.call(regexp);
+    var rx = new RegExp(regexp.source, ~flags.indexOf('g') ? flags : 'g' + flags);
+    rx.lastIndex = toLength(regexp.lastIndex);
+    return new $RegExpStringIterator(rx, S);
+  }
+});
diff --git a/js/lib/core-js/es7.string.pad-end.js b/js/lib/core-js/es7.string.pad-end.js
new file mode 100644
index 00000000000..b8ed042f9be
--- /dev/null
+++ b/js/lib/core-js/es7.string.pad-end.js
@@ -0,0 +1,10 @@
+'use strict';
+// https://github.com/tc39/proposal-string-pad-start-end
+var $export = require('./_export');
+var $pad = require('./_string-pad');
+
+$export($export.P, 'String', {
+  padEnd: function padEnd(maxLength /* , fillString = ' ' */) {
+    return $pad(this, maxLength, arguments.length > 1 ? arguments[1] : undefined, false);
+  }
+});
diff --git a/js/lib/core-js/es7.string.pad-start.js b/js/lib/core-js/es7.string.pad-start.js
new file mode 100644
index 00000000000..3173d469043
--- /dev/null
+++ b/js/lib/core-js/es7.string.pad-start.js
@@ -0,0 +1,10 @@
+'use strict';
+// https://github.com/tc39/proposal-string-pad-start-end
+var $export = require('./_export');
+var $pad = require('./_string-pad');
+
+$export($export.P, 'String', {
+  padStart: function padStart(maxLength /* , fillString = ' ' */) {
+    return $pad(this, maxLength, arguments.length > 1 ? arguments[1] : undefined, true);
+  }
+});
diff --git a/js/lib/core-js/es7.string.trim-left.js b/js/lib/core-js/es7.string.trim-left.js
new file mode 100644
index 00000000000..39a4b47cfa7
--- /dev/null
+++ b/js/lib/core-js/es7.string.trim-left.js
@@ -0,0 +1,7 @@
+'use strict';
+// https://github.com/sebmarkbage/ecmascript-string-left-right-trim
+require('./_string-trim')('trimLeft', function ($trim) {
+  return function trimLeft() {
+    return $trim(this, 1);
+  };
+}, 'trimStart');
diff --git a/js/lib/core-js/es7.string.trim-right.js b/js/lib/core-js/es7.string.trim-right.js
new file mode 100644
index 00000000000..7b7c4529880
--- /dev/null
+++ b/js/lib/core-js/es7.string.trim-right.js
@@ -0,0 +1,7 @@
+'use strict';
+// https://github.com/sebmarkbage/ecmascript-string-left-right-trim
+require('./_string-trim')('trimRight', function ($trim) {
+  return function trimRight() {
+    return $trim(this, 2);
+  };
+}, 'trimEnd');
diff --git a/js/lib/core-js/es7.symbol.async-iterator.js b/js/lib/core-js/es7.symbol.async-iterator.js
new file mode 100644
index 00000000000..f56dc2a8eb7
--- /dev/null
+++ b/js/lib/core-js/es7.symbol.async-iterator.js
@@ -0,0 +1 @@
+require('./_wks-define')('asyncIterator');
diff --git a/js/lib/core-js/es7.symbol.observable.js b/js/lib/core-js/es7.symbol.observable.js
new file mode 100644
index 00000000000..fc9a23761a4
--- /dev/null
+++ b/js/lib/core-js/es7.symbol.observable.js
@@ -0,0 +1 @@
+require('./_wks-define')('observable');
diff --git a/js/lib/core-js/es7.system.global.js b/js/lib/core-js/es7.system.global.js
new file mode 100644
index 00000000000..310a802ada3
--- /dev/null
+++ b/js/lib/core-js/es7.system.global.js
@@ -0,0 +1,4 @@
+// https://github.com/tc39/proposal-global
+var $export = require('./_export');
+
+$export($export.S, 'System', { global: require('./_global') });
diff --git a/js/lib/core-js/es7.weak-map.from.js b/js/lib/core-js/es7.weak-map.from.js
new file mode 100644
index 00000000000..1a013657613
--- /dev/null
+++ b/js/lib/core-js/es7.weak-map.from.js
@@ -0,0 +1,2 @@
+// https://tc39.github.io/proposal-setmap-offrom/#sec-weakmap.from
+require('./_set-collection-from')('WeakMap');
diff --git a/js/lib/core-js/es7.weak-map.of.js b/js/lib/core-js/es7.weak-map.of.js
new file mode 100644
index 00000000000..52c3f66dfce
--- /dev/null
+++ b/js/lib/core-js/es7.weak-map.of.js
@@ -0,0 +1,2 @@
+// https://tc39.github.io/proposal-setmap-offrom/#sec-weakmap.of
+require('./_set-collection-of')('WeakMap');
diff --git a/js/lib/core-js/es7.weak-set.from.js b/js/lib/core-js/es7.weak-set.from.js
new file mode 100644
index 00000000000..493e5bee032
--- /dev/null
+++ b/js/lib/core-js/es7.weak-set.from.js
@@ -0,0 +1,2 @@
+// https://tc39.github.io/proposal-setmap-offrom/#sec-weakset.from
+require('./_set-collection-from')('WeakSet');
diff --git a/js/lib/core-js/es7.weak-set.of.js b/js/lib/core-js/es7.weak-set.of.js
new file mode 100644
index 00000000000..5941e72aab9
--- /dev/null
+++ b/js/lib/core-js/es7.weak-set.of.js
@@ -0,0 +1,2 @@
+// https://tc39.github.io/proposal-setmap-offrom/#sec-weakset.of
+require('./_set-collection-of')('WeakSet');
diff --git a/js/lib/core-js/shim.min.js b/js/lib/core-js/shim.min.js
deleted file mode 100644
index 8fb80111b77..00000000000
--- a/js/lib/core-js/shim.min.js
+++ /dev/null
@@ -1,10 +0,0 @@
-/**
- * core-js 2.5.1
- * https://github.com/zloirock/core-js
- * License: http://rock.mit-license.org
- * © 2017 Denis Pushkarev
- */
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e=r(84),i=r(34),o=r(13),u=r(2),c=r(12),f=r(44),a=r(5),s=a("iterator"),l=a("toStringTag"),h=f.Array,p={CSSRuleList:!0,CSSStyleDeclaration:!1,CSSValueList:!1,ClientRectList:!1,DOMRectList:!1,DOMStringList:!1,DOMTokenList:!0,DataTransferItemList:!1,FileList:!1,HTMLAllCollection:!1,HTMLCollection:!1,HTMLFormElement:!1,HTMLSelectElement:!1,MediaList:!0,MimeTypeArray:!1,NamedNodeMap:!1,NodeList:!0,PaintRequestList:!1,Plugin:!1,PluginArray:!1,SVGLengthList:!1,SVGNumberList:!1,SVGPathSegList:!1,SVGPointList:!1,SVGStringList:!1,SVGTransformList:!1,SourceBufferList:!1,StyleSheetList:!0,TextTrackCueList:!1,TextTrackList:!1,TouchList:!1},v=i(p),g=0;g<v.length;g++){var y,d=v[g],_=p[d],S=u[d],b=S&&S.prototype;if(b&&(b[s]||c(b,s,h),b[l]||c(b,l,d),f[d]=h,_))for(y in e)b[y]||o(b,y,e[y],!0)}},function(t,n,r){var e=r(2),i=r(0),o=e.navigator,u=[].slice,c=!!o&&/MSIE .\./.test(o.userAgent),f=function(t){return function(n,r){var e=arguments.length>2,i=!!e&&u.call(arguments,2);return t(e?function(){("function"==typeof n?n:Function(n)).apply(this,i)}:n,r)}};i(i.G+i.B+i.F*c,{setTimeout:f(e.setTimeout),setInterval:f(e.setInterval)})}]),"undefined"!=typeof module&&module.exports?module.exports=t:"function"==typeof define&&define.amd?define(function(){return t}):n.core=t}(1,1);
-//# sourceMappingURL=shim.min.js.map
\ No newline at end of file
diff --git a/js/lib/lib.go b/js/lib/lib.go
index 31cff76071f..658fbd287b2 100644
--- a/js/lib/lib.go
+++ b/js/lib/lib.go
@@ -23,7 +23,7 @@
 package lib
 
 import (
-	"sync"
+	"path"
 
 	rice "github.com/GeertJohan/go.rice"
 	"github.com/dop251/goja"
@@ -31,18 +31,270 @@ import (
 
 //nolint:gochecknoglobals
 var (
-	once   sync.Once
-	coreJs *goja.Program
+	compiled map[string]*goja.Program
 )
 
-func GetCoreJS() *goja.Program {
-	once.Do(func() {
-		coreJs = goja.MustCompile(
-			"core-js/shim.min.js",
-			rice.MustFindBox("core-js").MustString("shim.min.js"),
-			true,
-		)
+func init() {
+	var list = []string{
+		"_add-to-unscopables.js",
+		"_a-function.js",
+		"_an-instance.js",
+		"_an-object.js",
+		"_array-from-iterable.js",
+		"_array-includes.js",
+		"_array-methods.js",
+		"_array-species-constructor.js",
+		"_array-species-create.js",
+		"_classof.js",
+		"_cof.js",
+		"_collection.js",
+		"_collection-strong.js",
+		"_collection-to-json.js",
+		"_collection-weak.js",
+		"core.get-iterator-method.js",
+		"_core.js",
+		"_create-property.js",
+		"_ctx.js",
+		"_defined.js",
+		"_descriptors.js",
+		"_dom-create.js",
+		"_enum-bug-keys.js",
+		"es6.map.js",
+		"es6.promise.js",
+		"es6.set.js",
+		"es6.weak-map.js",
+		"es7.array.flat-map.js",
+		"es7.array.flatten.js",
+		"es7.asap.js",
+		"es7.error.is-error.js",
+		"es7.global.js",
+		"es7.map.from.js",
+		"es7.map.of.js",
+		"es7.map.to-json.js",
+		"es7.object.define-getter.js",
+		"es7.object.define-setter.js",
+		"es7.object.entries.js",
+		"es7.object.get-own-property-descriptors.js",
+		"es7.object.lookup-getter.js",
+		"es7.object.lookup-setter.js",
+		"es7.object.values.js",
+		"es7.observable.js",
+		"es7.promise.finally.js",
+		"es7.promise.try.js",
+		"es7.reflect.define-metadata.js",
+		"es7.reflect.delete-metadata.js",
+		"es7.reflect.get-metadata.js",
+		"es7.reflect.get-metadata-keys.js",
+		"es7.reflect.get-own-metadata.js",
+		"es7.reflect.get-own-metadata-keys.js",
+		"es7.reflect.has-metadata.js",
+		"es7.reflect.has-own-metadata.js",
+		"es7.reflect.metadata.js",
+		"es7.set.from.js",
+		"es7.set.of.js",
+		"es7.set.to-json.js",
+		"es7.string.at.js",
+		"es7.string.match-all.js",
+		"es7.string.pad-end.js",
+		"es7.string.pad-start.js",
+		"es7.string.trim-left.js",
+		"es7.string.trim-right.js",
+		"es7.symbol.async-iterator.js",
+		"es7.symbol.observable.js",
+		"es7.system.global.js",
+		"es7.weak-map.from.js",
+		"es7.weak-map.of.js",
+		"es7.weak-set.from.js",
+		"es7.weak-set.of.js",
+		"_export.js",
+		"_fails.js",
+		"_flags.js",
+		"_flatten-into-array.js",
+		"_for-of.js",
+		"_global.js",
+		"_has.js",
+		"_hide.js",
+		"_html.js",
+		"_ie8-dom-define.js",
+		"_inherit-if-required.js",
+		"_invoke.js",
+		"_iobject.js",
+		"_is-array-iter.js",
+		"_is-array.js",
+		"_is-object.js",
+		"_is-regexp.js",
+		"_iterators.js",
+		"_iter-call.js",
+		"_iter-create.js",
+		"_iter-define.js",
+		"_iter-detect.js",
+		"_iter-step.js",
+		"_library.js",
+		"_metadata.js",
+		"_meta.js",
+		"_microtask.js",
+		"_new-promise-capability.js",
+		"_object-assign.js",
+		"_object-create.js",
+		"_object-dp.js",
+		"_object-dps.js",
+		"_object-forced-pam.js",
+		"_object-gopd.js",
+		"_object-gopn.js",
+		"_object-gops.js",
+		"_object-gpo.js",
+		"_object-keys-internal.js",
+		"_object-keys.js",
+		"_object-pie.js",
+		"_object-to-array.js",
+		"_own-keys.js",
+		"_perform.js",
+		"_promise-resolve.js",
+		"_property-desc.js",
+		"_redefine-all.js",
+		"_redefine.js",
+		"_set-collection-from.js",
+		"_set-collection-of.js",
+		"_set-proto.js",
+		"_set-species.js",
+		"_set-to-string-tag.js",
+		"_shared.js",
+		"_shared-key.js",
+		"_species-constructor.js",
+		"_string-at.js",
+		"_string-pad.js",
+		"_string-repeat.js",
+		"_string-trim.js",
+		"_string-ws.js",
+		"_task.js",
+		"_to-absolute-index.js",
+		"_to-integer.js",
+		"_to-iobject.js",
+		"_to-length.js",
+		"_to-object.js",
+		"_to-primitive.js",
+		"_uid.js",
+		"_validate-collection.js",
+		"_wks-define.js",
+		"_wks-ext.js",
+		"_wks.js",
+	}
+	compiled = make(map[string]*goja.Program, len(list))
+	for _, name := range list {
+		compiled[name] = goja.MustCompile(
+			name,
+
+			"(function(module, exports){\n"+
+				rice.MustFindBox("core-js").MustString(name)+"\n})",
+			true)
+	}
+}
+
+// AddPolyfills adds the polyfils to the provided runtime
+func AddPolyfills(rt *goja.Runtime) error {
+	// TODO refactor this ... maybe merge with the init context code for this ...
+	var pwd string // TODO this might not be needed as they are in the same folder
+
+	// Cache of loaded programs and files.
+	modules := make(map[string]*goja.Object)
+	rt.Set("require", func(str string) (goja.Value, error) {
+		// fmt.Println(str)
+		filename := path.Join(pwd, str) + ".js"
+
+		// First, check if we have a cached program already.
+		module, ok := modules[filename]
+		if !ok {
+			// TODO this is technically not needed as they are all in the same folder currently
+			defer func(backPwd string) { pwd = backPwd }(pwd)
+			pwd = path.Dir(filename)
+			exports := rt.NewObject()
+			module = rt.NewObject()
+			_ = module.Set("exports", exports)
+
+			modules[filename] = module
+
+			// Run the program.
+			f, err := rt.RunProgram(compiled[filename])
+			if err != nil {
+				delete(modules, filename)
+				return goja.Undefined(), err
+			}
+			if call, ok := goja.AssertFunction(f); ok {
+				if _, err = call(exports, module, exports); err != nil {
+					return nil, err
+				}
+			}
+		}
+
+		return module.Get("exports"), nil
+	})
+
+	defer func() {
+		_ = rt.GlobalObject().Delete("require")
+	}()
+
+	_, err := rt.RunScript("core-js.shim.js", `
+require('es6.promise');
+require('es7.array.flat-map');
+require('es7.array.flatten');
+require('es7.string.at');
+require('es7.string.pad-start');
+require('es7.string.pad-end');
+require('es7.string.trim-left');
+require('es7.string.trim-right');
+require('es7.string.match-all');
+require('es7.symbol.async-iterator');
+require('es7.symbol.observable');
+require('es7.object.get-own-property-descriptors');
+require('es7.object.values');
+require('es7.object.entries');
+require('es7.object.define-getter');
+require('es7.object.define-setter');
+require('es7.object.lookup-getter');
+require('es7.object.lookup-setter');
+require('es7.map.to-json');
+require('es7.set.to-json');
+require('es7.map.of');
+require('es7.set.of');
+require('es7.weak-map.of');
+require('es7.weak-set.of');
+require('es7.map.from');
+require('es7.set.from');
+require('es7.weak-map.from');
+require('es7.weak-set.from');
+require('es7.global');
+require('es7.system.global');
+require('es7.error.is-error');
+require('es7.promise.finally');
+require('es7.promise.try');
+require('es7.reflect.define-metadata');
+require('es7.reflect.delete-metadata');
+require('es7.reflect.get-metadata');
+require('es7.reflect.get-metadata-keys');
+require('es7.reflect.get-own-metadata');
+require('es7.reflect.get-own-metadata-keys');
+require('es7.reflect.has-metadata');
+require('es7.reflect.has-own-metadata');
+require('es7.reflect.metadata');
+require('es7.asap');
+require('es7.observable');
+	`)
+	if err != nil {
+		return err
+	}
+	/* This code is here to check if we should remove some files
+	// TODO to be moved to a test
+	var notNeeded []string
+	rice.MustFindBox("core-js").Walk("", func(path string, info os.FileInfo, err error) error {
+		if !info.IsDir() {
+			if _, ok := programs[path]; !ok {
+				notNeeded = append(notNeeded, path)
+			}
+		}
+		return nil
 	})
+	fmt.Println(notNeeded)
+	*/
 
-	return coreJs
+	return nil
 }
diff --git a/js/lib/rice-box.go b/js/lib/rice-box.go
index d4735468ce8..5150b2e1c2e 100644
--- a/js/lib/rice-box.go
+++ b/js/lib/rice-box.go
@@ -1,25 +1,1015 @@
+// Code generated by rice embed-go; DO NOT EDIT.
 package lib
 
 import (
-	"github.com/GeertJohan/go.rice/embedded"
 	"time"
+
+	"github.com/GeertJohan/go.rice/embedded"
 )
 
 func init() {
 
 	// define files
 	file2 := &embedded.EmbeddedFile{
-		Filename:    "shim.min.js",
-		FileModTime: time.Unix(1527777844, 0),
-		Content:     string("/**\n * core-js 2.5.1\n * https://github.com/zloirock/core-js\n * License: http://rock.mit-license.org\n * © 2017 Denis Pushkarev\n */\n!function(t,n,r){\"use strict\";!function(t){function __webpack_require__(r){if(n[r])return n[r].exports;var e=n[r]={i:r,l:!1,exports:{}};return t[r].call(e.exports,e,e.exports,__webpack_require__),e.l=!0,e.exports}var n={};__webpack_require__.m=t,__webpack_require__.c=n,__webpack_require__.d=function(t,n,r){__webpack_require__.o(t,n)||Object.defineProperty(t,n,{configurable:!1,enumerable:!0,get:r})},__webpack_require__.n=function(t){var n=t&&t.__esModule?function getDefault(){return t[\"default\"]}:function getModuleExports(){return t};return __webpack_require__.d(n,\"a\",n),n},__webpack_require__.o=function(t,n){return Object.prototype.hasOwnProperty.call(t,n)},__webpack_require__.p=\"\",__webpack_require__(__webpack_require__.s=123)}([function(t,n,e){var i=e(2),o=e(28),u=e(12),c=e(13),f=e(18),a=function(t,n,e){var s,l,h,p,v=t&a.F,g=t&a.G,y=t&a.S,d=t&a.P,_=t&a.B,S=g?i:y?i[n]||(i[n]={}):(i[n]||{}).prototype,b=g?o:o[n]||(o[n]={}),m=b.prototype||(b.prototype={});g&&(e=n);for(s in e)h=((l=!v&&S&&S[s]!==r)?S:e)[s],p=_&&l?f(h,i):d&&\"function\"==typeof h?f(Function.call,h):h,S&&c(S,s,h,t&a.U),b[s]!=h&&u(b,s,p),d&&m[s]!=h&&(m[s]=h)};i.core=o,a.F=1,a.G=2,a.S=4,a.P=8,a.B=16,a.W=32,a.U=64,a.R=128,t.exports=a},function(t,n,r){var e=r(4);t.exports=function(t){if(!e(t))throw TypeError(t+\" is not an object!\");return t}},function(t,r){var e=t.exports=\"undefined\"!=typeof window&&window.Math==Math?window:\"undefined\"!=typeof self&&self.Math==Math?self:Function(\"return this\")();\"number\"==typeof n&&(n=e)},function(t,n){t.exports=function(t){try{return!!t()}catch(n){return!0}}},function(t,n){t.exports=function(t){return\"object\"==typeof t?null!==t:\"function\"==typeof t}},function(t,n,r){var e=r(49)(\"wks\"),i=r(32),o=r(2).Symbol,u=\"function\"==typeof o;(t.exports=function(t){return 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e=r(2),i=r(12),o=r(11),u=r(32)(\"src\"),c=Function.toString,f=(\"\"+c).split(\"toString\");r(28).inspectSource=function(t){return c.call(t)},(t.exports=function(t,n,r,c){var a=\"function\"==typeof r;a&&(o(r,\"name\")||i(r,\"name\",n)),t[n]!==r&&(a&&(o(r,u)||i(r,u,t[n]?\"\"+t[n]:f.join(String(n)))),t===e?t[n]=r:c?t[n]?t[n]=r:i(t,n,r):(delete t[n],i(t,n,r)))})(Function.prototype,\"toString\",function toString(){return\"function\"==typeof this&&this[u]||c.call(this)})},function(t,n,r){var e=r(0),i=r(3),o=r(22),u=/\"/g,c=function(t,n,r,e){var i=String(o(t)),c=\"<\"+n;return\"\"!==r&&(c+=\" \"+r+'=\"'+String(e).replace(u,\"&quot;\")+'\"'),c+\">\"+i+\"</\"+n+\">\"};t.exports=function(t,n){var r={};r[t]=n(c),e(e.P+e.F*i(function(){var n=\"\"[t]('\"');return n!==n.toLowerCase()||n.split('\"').length>3}),\"String\",r)}},function(t,n,r){var e=r(46),i=r(22);t.exports=function(t){return e(i(t))}},function(t,n,r){var 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a(t,o(n),arguments.length<3?r:f(arguments[2]))}})},function(t,n,e){var i=e(27),o=e(1),u=i.has,c=i.key;i.exp({hasOwnMetadata:function hasOwnMetadata(t,n){return u(t,o(n),arguments.length<3?r:c(arguments[2]))}})},function(t,n,e){var i=e(27),o=e(1),u=e(10),c=i.key,f=i.set;i.exp({metadata:function metadata(t,n){return function decorator(e,i){f(t,n,(i!==r?o:u)(e),c(i))}}})},function(t,n,r){var e=r(0),i=r(86)(),o=r(2).process,u=\"process\"==r(19)(o);e(e.G,{asap:function asap(t){var n=u&&o.domain;i(n?n.bind(t):t)}})},function(t,n,e){var i=e(0),o=e(2),u=e(28),c=e(86)(),f=e(5)(\"observable\"),a=e(10),s=e(1),l=e(39),h=e(41),p=e(12),v=e(40),g=v.RETURN,y=function(t){return null==t?r:a(t)},d=function(t){var n=t._c;n&&(t._c=r,n())},_=function(t){return t._o===r},S=function(t){_(t)||(t._o=r,d(t))},b=function(t,n){s(t),this._c=r,this._o=t,t=new m(this);try{var e=n(t),i=e;null!=e&&(\"function\"==typeof e.unsubscribe?e=function(){i.unsubscribe()}:a(e),this._c=e)}catch(o){return void t.error(o)}_(this)&&d(this)};b.prototype=h({},{unsubscribe:function unsubscribe(){S(this)}});var m=function(t){this._s=t};m.prototype=h({},{next:function next(t){var n=this._s;if(!_(n)){var r=n._o;try{var e=y(r.next);if(e)return e.call(r,t)}catch(i){try{S(n)}finally{throw i}}}},error:function error(t){var n=this._s;if(_(n))throw t;var e=n._o;n._o=r;try{var i=y(e.error);if(!i)throw t;t=i.call(e,t)}catch(o){try{d(n)}finally{throw o}}return d(n),t},complete:function complete(t){var n=this._s;if(!_(n)){var e=n._o;n._o=r;try{var i=y(e.complete);t=i?i.call(e,t):r}catch(o){try{d(n)}finally{throw o}}return d(n),t}}});var x=function Observable(t){l(this,x,\"Observable\",\"_f\")._f=a(t)};h(x.prototype,{subscribe:function subscribe(t){return new b(t,this._f)},forEach:function forEach(t){var n=this;return new(u.Promise||o.Promise)(function(r,e){a(t);var i=n.subscribe({next:function(n){try{return t(n)}catch(r){e(r),i.unsubscribe()}},error:e,complete:r})})}}),h(x,{from:function from(t){var n=\"function\"==typeof this?this:x,r=y(s(t)[f]);if(r){var e=s(r.call(t));return e.constructor===n?e:new n(function(t){return e.subscribe(t)})}return new n(function(n){var r=!1;return c(function(){if(!r){try{if(v(t,!1,function(t){if(n.next(t),r)return g})===g)return}catch(e){if(r)throw e;return void n.error(e)}n.complete()}}),function(){r=!0}})},of:function of(){for(var t=0,n=arguments.length,r=Array(n);t<n;)r[t]=arguments[t++];return new(\"function\"==typeof this?this:x)(function(t){var n=!1;return c(function(){if(!n){for(var e=0;e<r.length;++e)if(t.next(r[e]),n)return;t.complete()}}),function(){n=!0}})}}),p(x.prototype,f,function(){return this}),i(i.G,{Observable:x}),e(38)(\"Observable\")},function(t,n,r){var e=r(0),i=r(85);e(e.G+e.B,{setImmediate:i.set,clearImmediate:i.clear})},function(t,n,r){for(var e=r(84),i=r(34),o=r(13),u=r(2),c=r(12),f=r(44),a=r(5),s=a(\"iterator\"),l=a(\"toStringTag\"),h=f.Array,p={CSSRuleList:!0,CSSStyleDeclaration:!1,CSSValueList:!1,ClientRectList:!1,DOMRectList:!1,DOMStringList:!1,DOMTokenList:!0,DataTransferItemList:!1,FileList:!1,HTMLAllCollection:!1,HTMLCollection:!1,HTMLFormElement:!1,HTMLSelectElement:!1,MediaList:!0,MimeTypeArray:!1,NamedNodeMap:!1,NodeList:!0,PaintRequestList:!1,Plugin:!1,PluginArray:!1,SVGLengthList:!1,SVGNumberList:!1,SVGPathSegList:!1,SVGPointList:!1,SVGStringList:!1,SVGTransformList:!1,SourceBufferList:!1,StyleSheetList:!0,TextTrackCueList:!1,TextTrackList:!1,TouchList:!1},v=i(p),g=0;g<v.length;g++){var y,d=v[g],_=p[d],S=u[d],b=S&&S.prototype;if(b&&(b[s]||c(b,s,h),b[l]||c(b,l,d),f[d]=h,_))for(y in e)b[y]||o(b,y,e[y],!0)}},function(t,n,r){var e=r(2),i=r(0),o=e.navigator,u=[].slice,c=!!o&&/MSIE .\\./.test(o.userAgent),f=function(t){return function(n,r){var e=arguments.length>2,i=!!e&&u.call(arguments,2);return t(e?function(){(\"function\"==typeof n?n:Function(n)).apply(this,i)}:n,r)}};i(i.G+i.B+i.F*c,{setTimeout:f(e.setTimeout),setInterval:f(e.setInterval)})}]),\"undefined\"!=typeof module&&module.exports?module.exports=t:\"function\"==typeof define&&define.amd?define(function(){return t}):n.core=t}(1,1);\n//# sourceMappingURL=shim.min.js.map"),
+		Filename:    "_a-function.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("module.exports = function (it) {\n  if (typeof it != 'function') throw TypeError(it + ' is not a function!');\n  return it;\n};\n"),
+	}
+	file3 := &embedded.EmbeddedFile{
+		Filename:    "_add-to-unscopables.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// 22.1.3.31 Array.prototype[@@unscopables]\nvar UNSCOPABLES = require('./_wks')('unscopables');\nvar ArrayProto = Array.prototype;\nif (ArrayProto[UNSCOPABLES] == undefined) require('./_hide')(ArrayProto, UNSCOPABLES, {});\nmodule.exports = function (key) {\n  ArrayProto[UNSCOPABLES][key] = true;\n};\n"),
+	}
+	file4 := &embedded.EmbeddedFile{
+		Filename:    "_an-instance.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("module.exports = function (it, Constructor, name, forbiddenField) {\n  if (!(it instanceof Constructor) || (forbiddenField !== undefined && forbiddenField in it)) {\n    throw TypeError(name + ': incorrect invocation!');\n  } return it;\n};\n"),
+	}
+	file5 := &embedded.EmbeddedFile{
+		Filename:    "_an-object.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var isObject = require('./_is-object');\nmodule.exports = function (it) {\n  if (!isObject(it)) throw TypeError(it + ' is not an object!');\n  return it;\n};\n"),
+	}
+	file6 := &embedded.EmbeddedFile{
+		Filename:    "_array-from-iterable.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var forOf = require('./_for-of');\n\nmodule.exports = function (iter, ITERATOR) {\n  var result = [];\n  forOf(iter, false, result.push, result, ITERATOR);\n  return result;\n};\n"),
+	}
+	file7 := &embedded.EmbeddedFile{
+		Filename:    "_array-includes.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// false -> Array#indexOf\n// true  -> Array#includes\nvar toIObject = require('./_to-iobject');\nvar toLength = require('./_to-length');\nvar toAbsoluteIndex = require('./_to-absolute-index');\nmodule.exports = function (IS_INCLUDES) {\n  return function ($this, el, fromIndex) {\n    var O = toIObject($this);\n    var length = toLength(O.length);\n    var index = toAbsoluteIndex(fromIndex, length);\n    var value;\n    // Array#includes uses SameValueZero equality algorithm\n    // eslint-disable-next-line no-self-compare\n    if (IS_INCLUDES && el != el) while (length > index) {\n      value = O[index++];\n      // eslint-disable-next-line no-self-compare\n      if (value != value) return true;\n    // Array#indexOf ignores holes, Array#includes - not\n    } else for (;length > index; index++) if (IS_INCLUDES || index in O) {\n      if (O[index] === el) return IS_INCLUDES || index || 0;\n    } return !IS_INCLUDES && -1;\n  };\n};\n"),
+	}
+	file8 := &embedded.EmbeddedFile{
+		Filename:    "_array-methods.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// 0 -> Array#forEach\n// 1 -> Array#map\n// 2 -> Array#filter\n// 3 -> Array#some\n// 4 -> Array#every\n// 5 -> Array#find\n// 6 -> Array#findIndex\nvar ctx = require('./_ctx');\nvar IObject = require('./_iobject');\nvar toObject = require('./_to-object');\nvar toLength = require('./_to-length');\nvar asc = require('./_array-species-create');\nmodule.exports = function (TYPE, $create) {\n  var IS_MAP = TYPE == 1;\n  var IS_FILTER = TYPE == 2;\n  var IS_SOME = TYPE == 3;\n  var IS_EVERY = TYPE == 4;\n  var IS_FIND_INDEX = TYPE == 6;\n  var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;\n  var create = $create || asc;\n  return function ($this, callbackfn, that) {\n    var O = toObject($this);\n    var self = IObject(O);\n    var f = ctx(callbackfn, that, 3);\n    var length = toLength(self.length);\n    var index = 0;\n    var result = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined;\n    var val, res;\n    for (;length > index; index++) if (NO_HOLES || index in self) {\n      val = self[index];\n      res = f(val, index, O);\n      if (TYPE) {\n        if (IS_MAP) result[index] = res;   // map\n        else if (res) switch (TYPE) {\n          case 3: return true;             // some\n          case 5: return val;              // find\n          case 6: return index;            // findIndex\n          case 2: result.push(val);        // filter\n        } else if (IS_EVERY) return false; // every\n      }\n    }\n    return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : result;\n  };\n};\n"),
+	}
+	file9 := &embedded.EmbeddedFile{
+		Filename:    "_array-species-constructor.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var isObject = require('./_is-object');\nvar isArray = require('./_is-array');\nvar SPECIES = require('./_wks')('species');\n\nmodule.exports = function (original) {\n  var C;\n  if (isArray(original)) {\n    C = original.constructor;\n    // cross-realm fallback\n    if (typeof C == 'function' && (C === Array || isArray(C.prototype))) C = undefined;\n    if (isObject(C)) {\n      C = C[SPECIES];\n      if (C === null) C = undefined;\n    }\n  } return C === undefined ? Array : C;\n};\n"),
+	}
+	filea := &embedded.EmbeddedFile{
+		Filename:    "_array-species-create.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// 9.4.2.3 ArraySpeciesCreate(originalArray, length)\nvar speciesConstructor = require('./_array-species-constructor');\n\nmodule.exports = function (original, length) {\n  return new (speciesConstructor(original))(length);\n};\n"),
+	}
+	fileb := &embedded.EmbeddedFile{
+		Filename:    "_classof.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// getting tag from 19.1.3.6 Object.prototype.toString()\nvar cof = require('./_cof');\nvar TAG = require('./_wks')('toStringTag');\n// ES3 wrong here\nvar ARG = cof(function () { return arguments; }()) == 'Arguments';\n\n// fallback for IE11 Script Access Denied error\nvar tryGet = function (it, key) {\n  try {\n    return it[key];\n  } catch (e) { /* empty */ }\n};\n\nmodule.exports = function (it) {\n  var O, T, B;\n  return it === undefined ? 'Undefined' : it === null ? 'Null'\n    // @@toStringTag case\n    : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T\n    // builtinTag case\n    : ARG ? cof(O)\n    // ES3 arguments fallback\n    : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;\n};\n"),
+	}
+	filec := &embedded.EmbeddedFile{
+		Filename:    "_cof.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var toString = {}.toString;\n\nmodule.exports = function (it) {\n  return toString.call(it).slice(8, -1);\n};\n"),
+	}
+	filed := &embedded.EmbeddedFile{
+		Filename:    "_collection-strong.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\nvar dP = require('./_object-dp').f;\nvar create = require('./_object-create');\nvar redefineAll = require('./_redefine-all');\nvar ctx = require('./_ctx');\nvar anInstance = require('./_an-instance');\nvar forOf = require('./_for-of');\nvar $iterDefine = require('./_iter-define');\nvar step = require('./_iter-step');\nvar setSpecies = require('./_set-species');\nvar DESCRIPTORS = require('./_descriptors');\nvar fastKey = require('./_meta').fastKey;\nvar validate = require('./_validate-collection');\nvar SIZE = DESCRIPTORS ? '_s' : 'size';\n\nvar getEntry = function (that, key) {\n  // fast case\n  var index = fastKey(key);\n  var entry;\n  if (index !== 'F') return that._i[index];\n  // frozen object case\n  for (entry = that._f; entry; entry = entry.n) {\n    if (entry.k == key) return entry;\n  }\n};\n\nmodule.exports = {\n  getConstructor: function (wrapper, NAME, IS_MAP, ADDER) {\n    var C = wrapper(function (that, iterable) {\n      anInstance(that, C, NAME, '_i');\n      that._t = NAME;         // collection type\n      that._i = create(null); // index\n      that._f = undefined;    // first entry\n      that._l = undefined;    // last entry\n      that[SIZE] = 0;         // size\n      if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);\n    });\n    redefineAll(C.prototype, {\n      // 23.1.3.1 Map.prototype.clear()\n      // 23.2.3.2 Set.prototype.clear()\n      clear: function clear() {\n        for (var that = validate(this, NAME), data = that._i, entry = that._f; entry; entry = entry.n) {\n          entry.r = true;\n          if (entry.p) entry.p = entry.p.n = undefined;\n          delete data[entry.i];\n        }\n        that._f = that._l = undefined;\n        that[SIZE] = 0;\n      },\n      // 23.1.3.3 Map.prototype.delete(key)\n      // 23.2.3.4 Set.prototype.delete(value)\n      'delete': function (key) {\n        var that = validate(this, NAME);\n        var entry = getEntry(that, key);\n        if (entry) {\n          var next = entry.n;\n          var prev = entry.p;\n          delete that._i[entry.i];\n          entry.r = true;\n          if (prev) prev.n = next;\n          if (next) next.p = prev;\n          if (that._f == entry) that._f = next;\n          if (that._l == entry) that._l = prev;\n          that[SIZE]--;\n        } return !!entry;\n      },\n      // 23.2.3.6 Set.prototype.forEach(callbackfn, thisArg = undefined)\n      // 23.1.3.5 Map.prototype.forEach(callbackfn, thisArg = undefined)\n      forEach: function forEach(callbackfn /* , that = undefined */) {\n        validate(this, NAME);\n        var f = ctx(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);\n        var entry;\n        while (entry = entry ? entry.n : this._f) {\n          f(entry.v, entry.k, this);\n          // revert to the last existing entry\n          while (entry && entry.r) entry = entry.p;\n        }\n      },\n      // 23.1.3.7 Map.prototype.has(key)\n      // 23.2.3.7 Set.prototype.has(value)\n      has: function has(key) {\n        return !!getEntry(validate(this, NAME), key);\n      }\n    });\n    if (DESCRIPTORS) dP(C.prototype, 'size', {\n      get: function () {\n        return validate(this, NAME)[SIZE];\n      }\n    });\n    return C;\n  },\n  def: function (that, key, value) {\n    var entry = getEntry(that, key);\n    var prev, index;\n    // change existing entry\n    if (entry) {\n      entry.v = value;\n    // create new entry\n    } else {\n      that._l = entry = {\n        i: index = fastKey(key, true), // <- index\n        k: key,                        // <- key\n        v: value,                      // <- value\n        p: prev = that._l,             // <- previous entry\n        n: undefined,                  // <- next entry\n        r: false                       // <- removed\n      };\n      if (!that._f) that._f = entry;\n      if (prev) prev.n = entry;\n      that[SIZE]++;\n      // add to index\n      if (index !== 'F') that._i[index] = entry;\n    } return that;\n  },\n  getEntry: getEntry,\n  setStrong: function (C, NAME, IS_MAP) {\n    // add .keys, .values, .entries, [@@iterator]\n    // 23.1.3.4, 23.1.3.8, 23.1.3.11, 23.1.3.12, 23.2.3.5, 23.2.3.8, 23.2.3.10, 23.2.3.11\n    $iterDefine(C, NAME, function (iterated, kind) {\n      this._t = validate(iterated, NAME); // target\n      this._k = kind;                     // kind\n      this._l = undefined;                // previous\n    }, function () {\n      var that = this;\n      var kind = that._k;\n      var entry = that._l;\n      // revert to the last existing entry\n      while (entry && entry.r) entry = entry.p;\n      // get next entry\n      if (!that._t || !(that._l = entry = entry ? entry.n : that._t._f)) {\n        // or finish the iteration\n        that._t = undefined;\n        return step(1);\n      }\n      // return step by kind\n      if (kind == 'keys') return step(0, entry.k);\n      if (kind == 'values') return step(0, entry.v);\n      return step(0, [entry.k, entry.v]);\n    }, IS_MAP ? 'entries' : 'values', !IS_MAP, true);\n\n    // add [@@species], 23.1.2.2, 23.2.2.2\n    setSpecies(NAME);\n  }\n};\n"),
+	}
+	filee := &embedded.EmbeddedFile{
+		Filename:    "_collection-to-json.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://github.com/DavidBruant/Map-Set.prototype.toJSON\nvar classof = require('./_classof');\nvar from = require('./_array-from-iterable');\nmodule.exports = function (NAME) {\n  return function toJSON() {\n    if (classof(this) != NAME) throw TypeError(NAME + \"#toJSON isn't generic\");\n    return from(this);\n  };\n};\n"),
+	}
+	filef := &embedded.EmbeddedFile{
+		Filename:    "_collection-weak.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\nvar redefineAll = require('./_redefine-all');\nvar getWeak = require('./_meta').getWeak;\nvar anObject = require('./_an-object');\nvar isObject = require('./_is-object');\nvar anInstance = require('./_an-instance');\nvar forOf = require('./_for-of');\nvar createArrayMethod = require('./_array-methods');\nvar $has = require('./_has');\nvar validate = require('./_validate-collection');\nvar arrayFind = createArrayMethod(5);\nvar arrayFindIndex = createArrayMethod(6);\nvar id = 0;\n\n// fallback for uncaught frozen keys\nvar uncaughtFrozenStore = function (that) {\n  return that._l || (that._l = new UncaughtFrozenStore());\n};\nvar UncaughtFrozenStore = function () {\n  this.a = [];\n};\nvar findUncaughtFrozen = function (store, key) {\n  return arrayFind(store.a, function (it) {\n    return it[0] === key;\n  });\n};\nUncaughtFrozenStore.prototype = {\n  get: function (key) {\n    var entry = findUncaughtFrozen(this, key);\n    if (entry) return entry[1];\n  },\n  has: function (key) {\n    return !!findUncaughtFrozen(this, key);\n  },\n  set: function (key, value) {\n    var entry = findUncaughtFrozen(this, key);\n    if (entry) entry[1] = value;\n    else this.a.push([key, value]);\n  },\n  'delete': function (key) {\n    var index = arrayFindIndex(this.a, function (it) {\n      return it[0] === key;\n    });\n    if (~index) this.a.splice(index, 1);\n    return !!~index;\n  }\n};\n\nmodule.exports = {\n  getConstructor: function (wrapper, NAME, IS_MAP, ADDER) {\n    var C = wrapper(function (that, iterable) {\n      anInstance(that, C, NAME, '_i');\n      that._t = NAME;      // collection type\n      that._i = id++;      // collection id\n      that._l = undefined; // leak store for uncaught frozen objects\n      if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);\n    });\n    redefineAll(C.prototype, {\n      // 23.3.3.2 WeakMap.prototype.delete(key)\n      // 23.4.3.3 WeakSet.prototype.delete(value)\n      'delete': function (key) {\n        if (!isObject(key)) return false;\n        var data = getWeak(key);\n        if (data === true) return uncaughtFrozenStore(validate(this, NAME))['delete'](key);\n        return data && $has(data, this._i) && delete data[this._i];\n      },\n      // 23.3.3.4 WeakMap.prototype.has(key)\n      // 23.4.3.4 WeakSet.prototype.has(value)\n      has: function has(key) {\n        if (!isObject(key)) return false;\n        var data = getWeak(key);\n        if (data === true) return uncaughtFrozenStore(validate(this, NAME)).has(key);\n        return data && $has(data, this._i);\n      }\n    });\n    return C;\n  },\n  def: function (that, key, value) {\n    var data = getWeak(anObject(key), true);\n    if (data === true) uncaughtFrozenStore(that).set(key, value);\n    else data[that._i] = value;\n    return that;\n  },\n  ufstore: uncaughtFrozenStore\n};\n"),
+	}
+	fileg := &embedded.EmbeddedFile{
+		Filename:    "_collection.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\nvar global = require('./_global');\nvar $export = require('./_export');\nvar redefine = require('./_redefine');\nvar redefineAll = require('./_redefine-all');\nvar meta = require('./_meta');\nvar forOf = require('./_for-of');\nvar anInstance = require('./_an-instance');\nvar isObject = require('./_is-object');\nvar fails = require('./_fails');\nvar $iterDetect = require('./_iter-detect');\nvar setToStringTag = require('./_set-to-string-tag');\nvar inheritIfRequired = require('./_inherit-if-required');\n\nmodule.exports = function (NAME, wrapper, methods, common, IS_MAP, IS_WEAK) {\n  var Base = global[NAME];\n  var C = Base;\n  var ADDER = IS_MAP ? 'set' : 'add';\n  var proto = C && C.prototype;\n  var O = {};\n  var fixMethod = function (KEY) {\n    var fn = proto[KEY];\n    redefine(proto, KEY,\n      KEY == 'delete' ? function (a) {\n        return IS_WEAK && !isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);\n      } : KEY == 'has' ? function has(a) {\n        return IS_WEAK && !isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);\n      } : KEY == 'get' ? function get(a) {\n        return IS_WEAK && !isObject(a) ? undefined : fn.call(this, a === 0 ? 0 : a);\n      } : KEY == 'add' ? function add(a) { fn.call(this, a === 0 ? 0 : a); return this; }\n        : function set(a, b) { fn.call(this, a === 0 ? 0 : a, b); return this; }\n    );\n  };\n  if (typeof C != 'function' || !(IS_WEAK || proto.forEach && !fails(function () {\n    new C().entries().next();\n  }))) {\n    // create collection constructor\n    C = common.getConstructor(wrapper, NAME, IS_MAP, ADDER);\n    redefineAll(C.prototype, methods);\n    meta.NEED = true;\n  } else {\n    var instance = new C();\n    // early implementations not supports chaining\n    var HASNT_CHAINING = instance[ADDER](IS_WEAK ? {} : -0, 1) != instance;\n    // V8 ~  Chromium 40- weak-collections throws on primitives, but should return false\n    var THROWS_ON_PRIMITIVES = fails(function () { instance.has(1); });\n    // most early implementations doesn't supports iterables, most modern - not close it correctly\n    var ACCEPT_ITERABLES = $iterDetect(function (iter) { new C(iter); }); // eslint-disable-line no-new\n    // for early implementations -0 and +0 not the same\n    var BUGGY_ZERO = !IS_WEAK && fails(function () {\n      // V8 ~ Chromium 42- fails only with 5+ elements\n      var $instance = new C();\n      var index = 5;\n      while (index--) $instance[ADDER](index, index);\n      return !$instance.has(-0);\n    });\n    if (!ACCEPT_ITERABLES) {\n      C = wrapper(function (target, iterable) {\n        anInstance(target, C, NAME);\n        var that = inheritIfRequired(new Base(), target, C);\n        if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);\n        return that;\n      });\n      C.prototype = proto;\n      proto.constructor = C;\n    }\n    if (THROWS_ON_PRIMITIVES || BUGGY_ZERO) {\n      fixMethod('delete');\n      fixMethod('has');\n      IS_MAP && fixMethod('get');\n    }\n    if (BUGGY_ZERO || HASNT_CHAINING) fixMethod(ADDER);\n    // weak collections should not contains .clear method\n    if (IS_WEAK && proto.clear) delete proto.clear;\n  }\n\n  setToStringTag(C, NAME);\n\n  O[NAME] = C;\n  $export($export.G + $export.W + $export.F * (C != Base), O);\n\n  if (!IS_WEAK) common.setStrong(C, NAME, IS_MAP);\n\n  return C;\n};\n"),
+	}
+	fileh := &embedded.EmbeddedFile{
+		Filename:    "_core.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var core = module.exports = { version: '2.5.1' };\nif (typeof __e == 'number') __e = core; // eslint-disable-line no-undef\n"),
+	}
+	filei := &embedded.EmbeddedFile{
+		Filename:    "_create-property.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\nvar $defineProperty = require('./_object-dp');\nvar createDesc = require('./_property-desc');\n\nmodule.exports = function (object, index, value) {\n  if (index in object) $defineProperty.f(object, index, createDesc(0, value));\n  else object[index] = value;\n};\n"),
+	}
+	filej := &embedded.EmbeddedFile{
+		Filename:    "_ctx.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// optional / simple context binding\nvar aFunction = require('./_a-function');\nmodule.exports = function (fn, that, length) {\n  aFunction(fn);\n  if (that === undefined) return fn;\n  switch (length) {\n    case 1: return function (a) {\n      return fn.call(that, a);\n    };\n    case 2: return function (a, b) {\n      return fn.call(that, a, b);\n    };\n    case 3: return function (a, b, c) {\n      return fn.call(that, a, b, c);\n    };\n  }\n  return function (/* ...args */) {\n    return fn.apply(that, arguments);\n  };\n};\n"),
+	}
+	filek := &embedded.EmbeddedFile{
+		Filename:    "_defined.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// 7.2.1 RequireObjectCoercible(argument)\nmodule.exports = function (it) {\n  if (it == undefined) throw TypeError(\"Can't call method on  \" + it);\n  return it;\n};\n"),
+	}
+	filel := &embedded.EmbeddedFile{
+		Filename:    "_descriptors.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// Thank's IE8 for his funny defineProperty\nmodule.exports = !require('./_fails')(function () {\n  return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7;\n});\n"),
+	}
+	filem := &embedded.EmbeddedFile{
+		Filename:    "_dom-create.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var isObject = require('./_is-object');\nvar document = require('./_global').document;\n// typeof document.createElement is 'object' in old IE\nvar is = isObject(document) && isObject(document.createElement);\nmodule.exports = function (it) {\n  return is ? document.createElement(it) : {};\n};\n"),
+	}
+	filen := &embedded.EmbeddedFile{
+		Filename:    "_enum-bug-keys.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// IE 8- don't enum bug keys\nmodule.exports = (\n  'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'\n).split(',');\n"),
+	}
+	fileo := &embedded.EmbeddedFile{
+		Filename:    "_export.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var global = require('./_global');\nvar core = require('./_core');\nvar hide = require('./_hide');\nvar redefine = require('./_redefine');\nvar ctx = require('./_ctx');\nvar PROTOTYPE = 'prototype';\n\nvar $export = function (type, name, source) {\n  var IS_FORCED = type & $export.F;\n  var IS_GLOBAL = type & $export.G;\n  var IS_STATIC = type & $export.S;\n  var IS_PROTO = type & $export.P;\n  var IS_BIND = type & $export.B;\n  var target = IS_GLOBAL ? global : IS_STATIC ? global[name] || (global[name] = {}) : (global[name] || {})[PROTOTYPE];\n  var exports = IS_GLOBAL ? core : core[name] || (core[name] = {});\n  var expProto = exports[PROTOTYPE] || (exports[PROTOTYPE] = {});\n  var key, own, out, exp;\n  if (IS_GLOBAL) source = name;\n  for (key in source) {\n    // contains in native\n    own = !IS_FORCED && target && target[key] !== undefined;\n    // export native or passed\n    out = (own ? target : source)[key];\n    // bind timers to global for call from export context\n    exp = IS_BIND && own ? ctx(out, global) : IS_PROTO && typeof out == 'function' ? ctx(Function.call, out) : out;\n    // extend global\n    if (target) redefine(target, key, out, type & $export.U);\n    // export\n    if (exports[key] != out) hide(exports, key, exp);\n    if (IS_PROTO && expProto[key] != out) expProto[key] = out;\n  }\n};\nglobal.core = core;\n// type bitmap\n$export.F = 1;   // forced\n$export.G = 2;   // global\n$export.S = 4;   // static\n$export.P = 8;   // proto\n$export.B = 16;  // bind\n$export.W = 32;  // wrap\n$export.U = 64;  // safe\n$export.R = 128; // real proto method for `library`\nmodule.exports = $export;\n"),
+	}
+	filep := &embedded.EmbeddedFile{
+		Filename:    "_fails.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("module.exports = function (exec) {\n  try {\n    return !!exec();\n  } catch (e) {\n    return true;\n  }\n};\n"),
+	}
+	fileq := &embedded.EmbeddedFile{
+		Filename:    "_flags.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\n// 21.2.5.3 get RegExp.prototype.flags\nvar anObject = require('./_an-object');\nmodule.exports = function () {\n  var that = anObject(this);\n  var result = '';\n  if (that.global) result += 'g';\n  if (that.ignoreCase) result += 'i';\n  if (that.multiline) result += 'm';\n  if (that.unicode) result += 'u';\n  if (that.sticky) result += 'y';\n  return result;\n};\n"),
+	}
+	filer := &embedded.EmbeddedFile{
+		Filename:    "_flatten-into-array.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\n// https://tc39.github.io/proposal-flatMap/#sec-FlattenIntoArray\nvar isArray = require('./_is-array');\nvar isObject = require('./_is-object');\nvar toLength = require('./_to-length');\nvar ctx = require('./_ctx');\nvar IS_CONCAT_SPREADABLE = require('./_wks')('isConcatSpreadable');\n\nfunction flattenIntoArray(target, original, source, sourceLen, start, depth, mapper, thisArg) {\n  var targetIndex = start;\n  var sourceIndex = 0;\n  var mapFn = mapper ? ctx(mapper, thisArg, 3) : false;\n  var element, spreadable;\n\n  while (sourceIndex < sourceLen) {\n    if (sourceIndex in source) {\n      element = mapFn ? mapFn(source[sourceIndex], sourceIndex, original) : source[sourceIndex];\n\n      spreadable = false;\n      if (isObject(element)) {\n        spreadable = element[IS_CONCAT_SPREADABLE];\n        spreadable = spreadable !== undefined ? !!spreadable : isArray(element);\n      }\n\n      if (spreadable && depth > 0) {\n        targetIndex = flattenIntoArray(target, original, element, toLength(element.length), targetIndex, depth - 1) - 1;\n      } else {\n        if (targetIndex >= 0x1fffffffffffff) throw TypeError();\n        target[targetIndex] = element;\n      }\n\n      targetIndex++;\n    }\n    sourceIndex++;\n  }\n  return targetIndex;\n}\n\nmodule.exports = flattenIntoArray;\n"),
+	}
+	files := &embedded.EmbeddedFile{
+		Filename:    "_for-of.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var ctx = require('./_ctx');\nvar call = require('./_iter-call');\nvar isArrayIter = require('./_is-array-iter');\nvar anObject = require('./_an-object');\nvar toLength = require('./_to-length');\nvar getIterFn = require('./core.get-iterator-method');\nvar BREAK = {};\nvar RETURN = {};\nvar exports = module.exports = function (iterable, entries, fn, that, ITERATOR) {\n  var iterFn = ITERATOR ? function () { return iterable; } : getIterFn(iterable);\n  var f = ctx(fn, that, entries ? 2 : 1);\n  var index = 0;\n  var length, step, iterator, result;\n  if (typeof iterFn != 'function') throw TypeError(iterable + ' is not iterable!');\n  // fast case for arrays with default iterator\n  if (isArrayIter(iterFn)) for (length = toLength(iterable.length); length > index; index++) {\n    result = entries ? f(anObject(step = iterable[index])[0], step[1]) : f(iterable[index]);\n    if (result === BREAK || result === RETURN) return result;\n  } else for (iterator = iterFn.call(iterable); !(step = iterator.next()).done;) {\n    result = call(iterator, f, step.value, entries);\n    if (result === BREAK || result === RETURN) return result;\n  }\n};\nexports.BREAK = BREAK;\nexports.RETURN = RETURN;\n"),
+	}
+	filet := &embedded.EmbeddedFile{
+		Filename:    "_global.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028\nvar global = module.exports = typeof window != 'undefined' && window.Math == Math\n  ? window : typeof self != 'undefined' && self.Math == Math ? self\n  // eslint-disable-next-line no-new-func\n  : Function('return this')();\nif (typeof __g == 'number') __g = global; // eslint-disable-line no-undef\n"),
+	}
+	fileu := &embedded.EmbeddedFile{
+		Filename:    "_has.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var hasOwnProperty = {}.hasOwnProperty;\nmodule.exports = function (it, key) {\n  return hasOwnProperty.call(it, key);\n};\n"),
+	}
+	filev := &embedded.EmbeddedFile{
+		Filename:    "_hide.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var dP = require('./_object-dp');\nvar createDesc = require('./_property-desc');\nmodule.exports = require('./_descriptors') ? function (object, key, value) {\n  return dP.f(object, key, createDesc(1, value));\n} : function (object, key, value) {\n  object[key] = value;\n  return object;\n};\n"),
+	}
+	filew := &embedded.EmbeddedFile{
+		Filename:    "_html.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var document = require('./_global').document;\nmodule.exports = document && document.documentElement;\n"),
+	}
+	filex := &embedded.EmbeddedFile{
+		Filename:    "_ie8-dom-define.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("module.exports = !require('./_descriptors') && !require('./_fails')(function () {\n  return Object.defineProperty(require('./_dom-create')('div'), 'a', { get: function () { return 7; } }).a != 7;\n});\n"),
+	}
+	filey := &embedded.EmbeddedFile{
+		Filename:    "_inherit-if-required.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var isObject = require('./_is-object');\nvar setPrototypeOf = require('./_set-proto').set;\nmodule.exports = function (that, target, C) {\n  var S = target.constructor;\n  var P;\n  if (S !== C && typeof S == 'function' && (P = S.prototype) !== C.prototype && isObject(P) && setPrototypeOf) {\n    setPrototypeOf(that, P);\n  } return that;\n};\n"),
+	}
+	filez := &embedded.EmbeddedFile{
+		Filename:    "_invoke.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// fast apply, http://jsperf.lnkit.com/fast-apply/5\nmodule.exports = function (fn, args, that) {\n  var un = that === undefined;\n  switch (args.length) {\n    case 0: return un ? fn()\n                      : fn.call(that);\n    case 1: return un ? fn(args[0])\n                      : fn.call(that, args[0]);\n    case 2: return un ? fn(args[0], args[1])\n                      : fn.call(that, args[0], args[1]);\n    case 3: return un ? fn(args[0], args[1], args[2])\n                      : fn.call(that, args[0], args[1], args[2]);\n    case 4: return un ? fn(args[0], args[1], args[2], args[3])\n                      : fn.call(that, args[0], args[1], args[2], args[3]);\n  } return fn.apply(that, args);\n};\n"),
+	}
+	file10 := &embedded.EmbeddedFile{
+		Filename:    "_iobject.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// fallback for non-array-like ES3 and non-enumerable old V8 strings\nvar cof = require('./_cof');\n// eslint-disable-next-line no-prototype-builtins\nmodule.exports = Object('z').propertyIsEnumerable(0) ? Object : function (it) {\n  return cof(it) == 'String' ? it.split('') : Object(it);\n};\n"),
+	}
+	file11 := &embedded.EmbeddedFile{
+		Filename:    "_is-array-iter.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// check on default Array iterator\nvar Iterators = require('./_iterators');\nvar ITERATOR = require('./_wks')('iterator');\nvar ArrayProto = Array.prototype;\n\nmodule.exports = function (it) {\n  return it !== undefined && (Iterators.Array === it || ArrayProto[ITERATOR] === it);\n};\n"),
+	}
+	file12 := &embedded.EmbeddedFile{
+		Filename:    "_is-array.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// 7.2.2 IsArray(argument)\nvar cof = require('./_cof');\nmodule.exports = Array.isArray || function isArray(arg) {\n  return cof(arg) == 'Array';\n};\n"),
+	}
+	file13 := &embedded.EmbeddedFile{
+		Filename:    "_is-object.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("module.exports = function (it) {\n  return typeof it === 'object' ? it !== null : typeof it === 'function';\n};\n"),
+	}
+	file14 := &embedded.EmbeddedFile{
+		Filename:    "_is-regexp.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// 7.2.8 IsRegExp(argument)\nvar isObject = require('./_is-object');\nvar cof = require('./_cof');\nvar MATCH = require('./_wks')('match');\nmodule.exports = function (it) {\n  var isRegExp;\n  return isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : cof(it) == 'RegExp');\n};\n"),
+	}
+	file15 := &embedded.EmbeddedFile{
+		Filename:    "_iter-call.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// call something on iterator step with safe closing on error\nvar anObject = require('./_an-object');\nmodule.exports = function (iterator, fn, value, entries) {\n  try {\n    return entries ? fn(anObject(value)[0], value[1]) : fn(value);\n  // 7.4.6 IteratorClose(iterator, completion)\n  } catch (e) {\n    var ret = iterator['return'];\n    if (ret !== undefined) anObject(ret.call(iterator));\n    throw e;\n  }\n};\n"),
+	}
+	file16 := &embedded.EmbeddedFile{
+		Filename:    "_iter-create.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\nvar create = require('./_object-create');\nvar descriptor = require('./_property-desc');\nvar setToStringTag = require('./_set-to-string-tag');\nvar IteratorPrototype = {};\n\n// 25.1.2.1.1 %IteratorPrototype%[@@iterator]()\nrequire('./_hide')(IteratorPrototype, require('./_wks')('iterator'), function () { return this; });\n\nmodule.exports = function (Constructor, NAME, next) {\n  Constructor.prototype = create(IteratorPrototype, { next: descriptor(1, next) });\n  setToStringTag(Constructor, NAME + ' Iterator');\n};\n"),
+	}
+	file17 := &embedded.EmbeddedFile{
+		Filename:    "_iter-define.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\nvar LIBRARY = require('./_library');\nvar $export = require('./_export');\nvar redefine = require('./_redefine');\nvar hide = require('./_hide');\nvar has = require('./_has');\nvar Iterators = require('./_iterators');\nvar $iterCreate = require('./_iter-create');\nvar setToStringTag = require('./_set-to-string-tag');\nvar getPrototypeOf = require('./_object-gpo');\nvar ITERATOR = require('./_wks')('iterator');\nvar BUGGY = !([].keys && 'next' in [].keys()); // Safari has buggy iterators w/o `next`\nvar FF_ITERATOR = '@@iterator';\nvar KEYS = 'keys';\nvar VALUES = 'values';\n\nvar returnThis = function () { return this; };\n\nmodule.exports = function (Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) {\n  $iterCreate(Constructor, NAME, next);\n  var getMethod = function (kind) {\n    if (!BUGGY && kind in proto) return proto[kind];\n    switch (kind) {\n      case KEYS: return function keys() { return new Constructor(this, kind); };\n      case VALUES: return function values() { return new Constructor(this, kind); };\n    } return function entries() { return new Constructor(this, kind); };\n  };\n  var TAG = NAME + ' Iterator';\n  var DEF_VALUES = DEFAULT == VALUES;\n  var VALUES_BUG = false;\n  var proto = Base.prototype;\n  var $native = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT];\n  var $default = $native || getMethod(DEFAULT);\n  var $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined;\n  var $anyNative = NAME == 'Array' ? proto.entries || $native : $native;\n  var methods, key, IteratorPrototype;\n  // Fix native\n  if ($anyNative) {\n    IteratorPrototype = getPrototypeOf($anyNative.call(new Base()));\n    if (IteratorPrototype !== Object.prototype && IteratorPrototype.next) {\n      // Set @@toStringTag to native iterators\n      setToStringTag(IteratorPrototype, TAG, true);\n      // fix for some old engines\n      if (!LIBRARY && !has(IteratorPrototype, ITERATOR)) hide(IteratorPrototype, ITERATOR, returnThis);\n    }\n  }\n  // fix Array#{values, @@iterator}.name in V8 / FF\n  if (DEF_VALUES && $native && $native.name !== VALUES) {\n    VALUES_BUG = true;\n    $default = function values() { return $native.call(this); };\n  }\n  // Define iterator\n  if ((!LIBRARY || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) {\n    hide(proto, ITERATOR, $default);\n  }\n  // Plug for library\n  Iterators[NAME] = $default;\n  Iterators[TAG] = returnThis;\n  if (DEFAULT) {\n    methods = {\n      values: DEF_VALUES ? $default : getMethod(VALUES),\n      keys: IS_SET ? $default : getMethod(KEYS),\n      entries: $entries\n    };\n    if (FORCED) for (key in methods) {\n      if (!(key in proto)) redefine(proto, key, methods[key]);\n    } else $export($export.P + $export.F * (BUGGY || VALUES_BUG), NAME, methods);\n  }\n  return methods;\n};\n"),
+	}
+	file18 := &embedded.EmbeddedFile{
+		Filename:    "_iter-detect.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var ITERATOR = require('./_wks')('iterator');\nvar SAFE_CLOSING = false;\n\ntry {\n  var riter = [7][ITERATOR]();\n  riter['return'] = function () { SAFE_CLOSING = true; };\n  // eslint-disable-next-line no-throw-literal\n  Array.from(riter, function () { throw 2; });\n} catch (e) { /* empty */ }\n\nmodule.exports = function (exec, skipClosing) {\n  if (!skipClosing && !SAFE_CLOSING) return false;\n  var safe = false;\n  try {\n    var arr = [7];\n    var iter = arr[ITERATOR]();\n    iter.next = function () { return { done: safe = true }; };\n    arr[ITERATOR] = function () { return iter; };\n    exec(arr);\n  } catch (e) { /* empty */ }\n  return safe;\n};\n"),
+	}
+	file19 := &embedded.EmbeddedFile{
+		Filename:    "_iter-step.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("module.exports = function (done, value) {\n  return { value: value, done: !!done };\n};\n"),
+	}
+	file1a := &embedded.EmbeddedFile{
+		Filename:    "_iterators.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("module.exports = {};\n"),
+	}
+	file1b := &embedded.EmbeddedFile{
+		Filename:    "_library.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("module.exports = false;\n"),
+	}
+	file1c := &embedded.EmbeddedFile{
+		Filename:    "_meta.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var META = require('./_uid')('meta');\nvar isObject = require('./_is-object');\nvar has = require('./_has');\nvar setDesc = require('./_object-dp').f;\nvar id = 0;\nvar isExtensible = Object.isExtensible || function () {\n  return true;\n};\nvar FREEZE = !require('./_fails')(function () {\n  return isExtensible(Object.preventExtensions({}));\n});\nvar setMeta = function (it) {\n  setDesc(it, META, { value: {\n    i: 'O' + ++id, // object ID\n    w: {}          // weak collections IDs\n  } });\n};\nvar fastKey = function (it, create) {\n  // return primitive with prefix\n  if (!isObject(it)) return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;\n  if (!has(it, META)) {\n    // can't set metadata to uncaught frozen object\n    if (!isExtensible(it)) return 'F';\n    // not necessary to add metadata\n    if (!create) return 'E';\n    // add missing metadata\n    setMeta(it);\n  // return object ID\n  } return it[META].i;\n};\nvar getWeak = function (it, create) {\n  if (!has(it, META)) {\n    // can't set metadata to uncaught frozen object\n    if (!isExtensible(it)) return true;\n    // not necessary to add metadata\n    if (!create) return false;\n    // add missing metadata\n    setMeta(it);\n  // return hash weak collections IDs\n  } return it[META].w;\n};\n// add metadata on freeze-family methods calling\nvar onFreeze = function (it) {\n  if (FREEZE && meta.NEED && isExtensible(it) && !has(it, META)) setMeta(it);\n  return it;\n};\nvar meta = module.exports = {\n  KEY: META,\n  NEED: false,\n  fastKey: fastKey,\n  getWeak: getWeak,\n  onFreeze: onFreeze\n};\n"),
+	}
+	file1d := &embedded.EmbeddedFile{
+		Filename:    "_metadata.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var Map = require('./es6.map');\nvar $export = require('./_export');\nvar shared = require('./_shared')('metadata');\nvar store = shared.store || (shared.store = new (require('./es6.weak-map'))());\n\nvar getOrCreateMetadataMap = function (target, targetKey, create) {\n  var targetMetadata = store.get(target);\n  if (!targetMetadata) {\n    if (!create) return undefined;\n    store.set(target, targetMetadata = new Map());\n  }\n  var keyMetadata = targetMetadata.get(targetKey);\n  if (!keyMetadata) {\n    if (!create) return undefined;\n    targetMetadata.set(targetKey, keyMetadata = new Map());\n  } return keyMetadata;\n};\nvar ordinaryHasOwnMetadata = function (MetadataKey, O, P) {\n  var metadataMap = getOrCreateMetadataMap(O, P, false);\n  return metadataMap === undefined ? false : metadataMap.has(MetadataKey);\n};\nvar ordinaryGetOwnMetadata = function (MetadataKey, O, P) {\n  var metadataMap = getOrCreateMetadataMap(O, P, false);\n  return metadataMap === undefined ? undefined : metadataMap.get(MetadataKey);\n};\nvar ordinaryDefineOwnMetadata = function (MetadataKey, MetadataValue, O, P) {\n  getOrCreateMetadataMap(O, P, true).set(MetadataKey, MetadataValue);\n};\nvar ordinaryOwnMetadataKeys = function (target, targetKey) {\n  var metadataMap = getOrCreateMetadataMap(target, targetKey, false);\n  var keys = [];\n  if (metadataMap) metadataMap.forEach(function (_, key) { keys.push(key); });\n  return keys;\n};\nvar toMetaKey = function (it) {\n  return it === undefined || typeof it == 'symbol' ? it : String(it);\n};\nvar exp = function (O) {\n  $export($export.S, 'Reflect', O);\n};\n\nmodule.exports = {\n  store: store,\n  map: getOrCreateMetadataMap,\n  has: ordinaryHasOwnMetadata,\n  get: ordinaryGetOwnMetadata,\n  set: ordinaryDefineOwnMetadata,\n  keys: ordinaryOwnMetadataKeys,\n  key: toMetaKey,\n  exp: exp\n};\n"),
+	}
+	file1e := &embedded.EmbeddedFile{
+		Filename:    "_microtask.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var global = require('./_global');\nvar macrotask = require('./_task').set;\nvar Observer = global.MutationObserver || global.WebKitMutationObserver;\nvar process = global.process;\nvar Promise = global.Promise;\nvar isNode = require('./_cof')(process) == 'process';\n\nmodule.exports = function () {\n  var head, last, notify;\n\n  var flush = function () {\n    var parent, fn;\n    if (isNode && (parent = process.domain)) parent.exit();\n    while (head) {\n      fn = head.fn;\n      head = head.next;\n      try {\n        fn();\n      } catch (e) {\n        if (head) notify();\n        else last = undefined;\n        throw e;\n      }\n    } last = undefined;\n    if (parent) parent.enter();\n  };\n\n  // Node.js\n  if (isNode) {\n    notify = function () {\n      process.nextTick(flush);\n    };\n  // browsers with MutationObserver\n  } else if (Observer) {\n    var toggle = true;\n    var node = document.createTextNode('');\n    new Observer(flush).observe(node, { characterData: true }); // eslint-disable-line no-new\n    notify = function () {\n      node.data = toggle = !toggle;\n    };\n  // environments with maybe non-completely correct, but existent Promise\n  } else if (Promise && Promise.resolve) {\n    var promise = Promise.resolve();\n    notify = function () {\n      promise.then(flush);\n    };\n  // for other environments - macrotask based on:\n  // - setImmediate\n  // - MessageChannel\n  // - window.postMessag\n  // - onreadystatechange\n  // - setTimeout\n  } else {\n    notify = function () {\n      // strange IE + webpack dev server bug - use .call(global)\n      macrotask.call(global, flush);\n    };\n  }\n\n  return function (fn) {\n    var task = { fn: fn, next: undefined };\n    if (last) last.next = task;\n    if (!head) {\n      head = task;\n      notify();\n    } last = task;\n  };\n};\n"),
+	}
+	file1f := &embedded.EmbeddedFile{
+		Filename:    "_new-promise-capability.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\n// 25.4.1.5 NewPromiseCapability(C)\nvar aFunction = require('./_a-function');\n\nfunction PromiseCapability(C) {\n  var resolve, reject;\n  this.promise = new C(function ($$resolve, $$reject) {\n    if (resolve !== undefined || reject !== undefined) throw TypeError('Bad Promise constructor');\n    resolve = $$resolve;\n    reject = $$reject;\n  });\n  this.resolve = aFunction(resolve);\n  this.reject = aFunction(reject);\n}\n\nmodule.exports.f = function (C) {\n  return new PromiseCapability(C);\n};\n"),
+	}
+	file1g := &embedded.EmbeddedFile{
+		Filename:    "_object-assign.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\n// 19.1.2.1 Object.assign(target, source, ...)\nvar getKeys = require('./_object-keys');\nvar gOPS = require('./_object-gops');\nvar pIE = require('./_object-pie');\nvar toObject = require('./_to-object');\nvar IObject = require('./_iobject');\nvar $assign = Object.assign;\n\n// should work with symbols and should have deterministic property order (V8 bug)\nmodule.exports = !$assign || require('./_fails')(function () {\n  var A = {};\n  var B = {};\n  // eslint-disable-next-line no-undef\n  var S = Symbol();\n  var K = 'abcdefghijklmnopqrst';\n  A[S] = 7;\n  K.split('').forEach(function (k) { B[k] = k; });\n  return $assign({}, A)[S] != 7 || Object.keys($assign({}, B)).join('') != K;\n}) ? function assign(target, source) { // eslint-disable-line no-unused-vars\n  var T = toObject(target);\n  var aLen = arguments.length;\n  var index = 1;\n  var getSymbols = gOPS.f;\n  var isEnum = pIE.f;\n  while (aLen > index) {\n    var S = IObject(arguments[index++]);\n    var keys = getSymbols ? getKeys(S).concat(getSymbols(S)) : getKeys(S);\n    var length = keys.length;\n    var j = 0;\n    var key;\n    while (length > j) if (isEnum.call(S, key = keys[j++])) T[key] = S[key];\n  } return T;\n} : $assign;\n"),
+	}
+	file1h := &embedded.EmbeddedFile{
+		Filename:    "_object-create.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])\nvar anObject = require('./_an-object');\nvar dPs = require('./_object-dps');\nvar enumBugKeys = require('./_enum-bug-keys');\nvar IE_PROTO = require('./_shared-key')('IE_PROTO');\nvar Empty = function () { /* empty */ };\nvar PROTOTYPE = 'prototype';\n\n// Create object with fake `null` prototype: use iframe Object with cleared prototype\nvar createDict = function () {\n  // Thrash, waste and sodomy: IE GC bug\n  var iframe = require('./_dom-create')('iframe');\n  var i = enumBugKeys.length;\n  var lt = '<';\n  var gt = '>';\n  var iframeDocument;\n  iframe.style.display = 'none';\n  require('./_html').appendChild(iframe);\n  iframe.src = 'javascript:'; // eslint-disable-line no-script-url\n  // createDict = iframe.contentWindow.Object;\n  // html.removeChild(iframe);\n  iframeDocument = iframe.contentWindow.document;\n  iframeDocument.open();\n  iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);\n  iframeDocument.close();\n  createDict = iframeDocument.F;\n  while (i--) delete createDict[PROTOTYPE][enumBugKeys[i]];\n  return createDict();\n};\n\nmodule.exports = Object.create || function create(O, Properties) {\n  var result;\n  if (O !== null) {\n    Empty[PROTOTYPE] = anObject(O);\n    result = new Empty();\n    Empty[PROTOTYPE] = null;\n    // add \"__proto__\" for Object.getPrototypeOf polyfill\n    result[IE_PROTO] = O;\n  } else result = createDict();\n  return Properties === undefined ? result : dPs(result, Properties);\n};\n"),
+	}
+	file1i := &embedded.EmbeddedFile{
+		Filename:    "_object-dp.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var anObject = require('./_an-object');\nvar IE8_DOM_DEFINE = require('./_ie8-dom-define');\nvar toPrimitive = require('./_to-primitive');\nvar dP = Object.defineProperty;\n\nexports.f = require('./_descriptors') ? Object.defineProperty : function defineProperty(O, P, Attributes) {\n  anObject(O);\n  P = toPrimitive(P, true);\n  anObject(Attributes);\n  if (IE8_DOM_DEFINE) try {\n    return dP(O, P, Attributes);\n  } catch (e) { /* empty */ }\n  if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');\n  if ('value' in Attributes) O[P] = Attributes.value;\n  return O;\n};\n"),
+	}
+	file1j := &embedded.EmbeddedFile{
+		Filename:    "_object-dps.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var dP = require('./_object-dp');\nvar anObject = require('./_an-object');\nvar getKeys = require('./_object-keys');\n\nmodule.exports = require('./_descriptors') ? Object.defineProperties : function defineProperties(O, Properties) {\n  anObject(O);\n  var keys = getKeys(Properties);\n  var length = keys.length;\n  var i = 0;\n  var P;\n  while (length > i) dP.f(O, P = keys[i++], Properties[P]);\n  return O;\n};\n"),
+	}
+	file1k := &embedded.EmbeddedFile{
+		Filename:    "_object-forced-pam.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\n// Forced replacement prototype accessors methods\nmodule.exports = require('./_library') || !require('./_fails')(function () {\n  var K = Math.random();\n  // In FF throws only define methods\n  // eslint-disable-next-line no-undef, no-useless-call\n  __defineSetter__.call(null, K, function () { /* empty */ });\n  delete require('./_global')[K];\n});\n"),
+	}
+	file1l := &embedded.EmbeddedFile{
+		Filename:    "_object-gopd.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var pIE = require('./_object-pie');\nvar createDesc = require('./_property-desc');\nvar toIObject = require('./_to-iobject');\nvar toPrimitive = require('./_to-primitive');\nvar has = require('./_has');\nvar IE8_DOM_DEFINE = require('./_ie8-dom-define');\nvar gOPD = Object.getOwnPropertyDescriptor;\n\nexports.f = require('./_descriptors') ? gOPD : function getOwnPropertyDescriptor(O, P) {\n  O = toIObject(O);\n  P = toPrimitive(P, true);\n  if (IE8_DOM_DEFINE) try {\n    return gOPD(O, P);\n  } catch (e) { /* empty */ }\n  if (has(O, P)) return createDesc(!pIE.f.call(O, P), O[P]);\n};\n"),
+	}
+	file1m := &embedded.EmbeddedFile{
+		Filename:    "_object-gopn.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// 19.1.2.7 / 15.2.3.4 Object.getOwnPropertyNames(O)\nvar $keys = require('./_object-keys-internal');\nvar hiddenKeys = require('./_enum-bug-keys').concat('length', 'prototype');\n\nexports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {\n  return $keys(O, hiddenKeys);\n};\n"),
+	}
+	file1n := &embedded.EmbeddedFile{
+		Filename:    "_object-gops.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("exports.f = Object.getOwnPropertySymbols;\n"),
+	}
+	file1o := &embedded.EmbeddedFile{
+		Filename:    "_object-gpo.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// 19.1.2.9 / 15.2.3.2 Object.getPrototypeOf(O)\nvar has = require('./_has');\nvar toObject = require('./_to-object');\nvar IE_PROTO = require('./_shared-key')('IE_PROTO');\nvar ObjectProto = Object.prototype;\n\nmodule.exports = Object.getPrototypeOf || function (O) {\n  O = toObject(O);\n  if (has(O, IE_PROTO)) return O[IE_PROTO];\n  if (typeof O.constructor == 'function' && O instanceof O.constructor) {\n    return O.constructor.prototype;\n  } return O instanceof Object ? ObjectProto : null;\n};\n"),
+	}
+	file1p := &embedded.EmbeddedFile{
+		Filename:    "_object-keys-internal.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var has = require('./_has');\nvar toIObject = require('./_to-iobject');\nvar arrayIndexOf = require('./_array-includes')(false);\nvar IE_PROTO = require('./_shared-key')('IE_PROTO');\n\nmodule.exports = function (object, names) {\n  var O = toIObject(object);\n  var i = 0;\n  var result = [];\n  var key;\n  for (key in O) if (key != IE_PROTO) has(O, key) && result.push(key);\n  // Don't enum bug & hidden keys\n  while (names.length > i) if (has(O, key = names[i++])) {\n    ~arrayIndexOf(result, key) || result.push(key);\n  }\n  return result;\n};\n"),
+	}
+	file1q := &embedded.EmbeddedFile{
+		Filename:    "_object-keys.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// 19.1.2.14 / 15.2.3.14 Object.keys(O)\nvar $keys = require('./_object-keys-internal');\nvar enumBugKeys = require('./_enum-bug-keys');\n\nmodule.exports = Object.keys || function keys(O) {\n  return $keys(O, enumBugKeys);\n};\n"),
+	}
+	file1r := &embedded.EmbeddedFile{
+		Filename:    "_object-pie.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("exports.f = {}.propertyIsEnumerable;\n"),
+	}
+	file1s := &embedded.EmbeddedFile{
+		Filename:    "_object-to-array.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var getKeys = require('./_object-keys');\nvar toIObject = require('./_to-iobject');\nvar isEnum = require('./_object-pie').f;\nmodule.exports = function (isEntries) {\n  return function (it) {\n    var O = toIObject(it);\n    var keys = getKeys(O);\n    var length = keys.length;\n    var i = 0;\n    var result = [];\n    var key;\n    while (length > i) if (isEnum.call(O, key = keys[i++])) {\n      result.push(isEntries ? [key, O[key]] : O[key]);\n    } return result;\n  };\n};\n"),
+	}
+	file1t := &embedded.EmbeddedFile{
+		Filename:    "_own-keys.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// all object keys, includes non-enumerable and symbols\nvar gOPN = require('./_object-gopn');\nvar gOPS = require('./_object-gops');\nvar anObject = require('./_an-object');\nvar Reflect = require('./_global').Reflect;\nmodule.exports = Reflect && Reflect.ownKeys || function ownKeys(it) {\n  var keys = gOPN.f(anObject(it));\n  var getSymbols = gOPS.f;\n  return getSymbols ? keys.concat(getSymbols(it)) : keys;\n};\n"),
+	}
+	file1u := &embedded.EmbeddedFile{
+		Filename:    "_perform.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("module.exports = function (exec) {\n  try {\n    return { e: false, v: exec() };\n  } catch (e) {\n    return { e: true, v: e };\n  }\n};\n"),
+	}
+	file1v := &embedded.EmbeddedFile{
+		Filename:    "_promise-resolve.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var anObject = require('./_an-object');\nvar isObject = require('./_is-object');\nvar newPromiseCapability = require('./_new-promise-capability');\n\nmodule.exports = function (C, x) {\n  anObject(C);\n  if (isObject(x) && x.constructor === C) return x;\n  var promiseCapability = newPromiseCapability.f(C);\n  var resolve = promiseCapability.resolve;\n  resolve(x);\n  return promiseCapability.promise;\n};\n"),
+	}
+	file1w := &embedded.EmbeddedFile{
+		Filename:    "_property-desc.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("module.exports = function (bitmap, value) {\n  return {\n    enumerable: !(bitmap & 1),\n    configurable: !(bitmap & 2),\n    writable: !(bitmap & 4),\n    value: value\n  };\n};\n"),
+	}
+	file1x := &embedded.EmbeddedFile{
+		Filename:    "_redefine-all.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var redefine = require('./_redefine');\nmodule.exports = function (target, src, safe) {\n  for (var key in src) redefine(target, key, src[key], safe);\n  return target;\n};\n"),
+	}
+	file1y := &embedded.EmbeddedFile{
+		Filename:    "_redefine.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var global = require('./_global');\nvar hide = require('./_hide');\nvar has = require('./_has');\nvar SRC = require('./_uid')('src');\nvar TO_STRING = 'toString';\nvar $toString = Function[TO_STRING];\nvar TPL = ('' + $toString).split(TO_STRING);\n\nrequire('./_core').inspectSource = function (it) {\n  return $toString.call(it);\n};\n\n(module.exports = function (O, key, val, safe) {\n  var isFunction = typeof val == 'function';\n  if (isFunction) has(val, 'name') || hide(val, 'name', key);\n  if (O[key] === val) return;\n  if (isFunction) has(val, SRC) || hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key)));\n  if (O === global) {\n    O[key] = val;\n  } else if (!safe) {\n    delete O[key];\n    hide(O, key, val);\n  } else if (O[key]) {\n    O[key] = val;\n  } else {\n    hide(O, key, val);\n  }\n// add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative\n})(Function.prototype, TO_STRING, function toString() {\n  return typeof this == 'function' && this[SRC] || $toString.call(this);\n});\n"),
+	}
+	file1z := &embedded.EmbeddedFile{
+		Filename:    "_set-collection-from.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\n// https://tc39.github.io/proposal-setmap-offrom/\nvar $export = require('./_export');\nvar aFunction = require('./_a-function');\nvar ctx = require('./_ctx');\nvar forOf = require('./_for-of');\n\nmodule.exports = function (COLLECTION) {\n  $export($export.S, COLLECTION, { from: function from(source /* , mapFn, thisArg */) {\n    var mapFn = arguments[1];\n    var mapping, A, n, cb;\n    aFunction(this);\n    mapping = mapFn !== undefined;\n    if (mapping) aFunction(mapFn);\n    if (source == undefined) return new this();\n    A = [];\n    if (mapping) {\n      n = 0;\n      cb = ctx(mapFn, arguments[2], 2);\n      forOf(source, false, function (nextItem) {\n        A.push(cb(nextItem, n++));\n      });\n    } else {\n      forOf(source, false, A.push, A);\n    }\n    return new this(A);\n  } });\n};\n"),
+	}
+	file20 := &embedded.EmbeddedFile{
+		Filename:    "_set-collection-of.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\n// https://tc39.github.io/proposal-setmap-offrom/\nvar $export = require('./_export');\n\nmodule.exports = function (COLLECTION) {\n  $export($export.S, COLLECTION, { of: function of() {\n    var length = arguments.length;\n    var A = Array(length);\n    while (length--) A[length] = arguments[length];\n    return new this(A);\n  } });\n};\n"),
+	}
+	file21 := &embedded.EmbeddedFile{
+		Filename:    "_set-proto.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// Works with __proto__ only. Old v8 can't work with null proto objects.\n/* eslint-disable no-proto */\nvar isObject = require('./_is-object');\nvar anObject = require('./_an-object');\nvar check = function (O, proto) {\n  anObject(O);\n  if (!isObject(proto) && proto !== null) throw TypeError(proto + \": can't set as prototype!\");\n};\nmodule.exports = {\n  set: Object.setPrototypeOf || ('__proto__' in {} ? // eslint-disable-line\n    function (test, buggy, set) {\n      try {\n        set = require('./_ctx')(Function.call, require('./_object-gopd').f(Object.prototype, '__proto__').set, 2);\n        set(test, []);\n        buggy = !(test instanceof Array);\n      } catch (e) { buggy = true; }\n      return function setPrototypeOf(O, proto) {\n        check(O, proto);\n        if (buggy) O.__proto__ = proto;\n        else set(O, proto);\n        return O;\n      };\n    }({}, false) : undefined),\n  check: check\n};\n"),
+	}
+	file22 := &embedded.EmbeddedFile{
+		Filename:    "_set-species.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\nvar global = require('./_global');\nvar dP = require('./_object-dp');\nvar DESCRIPTORS = require('./_descriptors');\nvar SPECIES = require('./_wks')('species');\n\nmodule.exports = function (KEY) {\n  var C = global[KEY];\n  if (DESCRIPTORS && C && !C[SPECIES]) dP.f(C, SPECIES, {\n    configurable: true,\n    get: function () { return this; }\n  });\n};\n"),
+	}
+	file23 := &embedded.EmbeddedFile{
+		Filename:    "_set-to-string-tag.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var def = require('./_object-dp').f;\nvar has = require('./_has');\nvar TAG = require('./_wks')('toStringTag');\n\nmodule.exports = function (it, tag, stat) {\n  if (it && !has(it = stat ? it : it.prototype, TAG)) def(it, TAG, { configurable: true, value: tag });\n};\n"),
+	}
+	file24 := &embedded.EmbeddedFile{
+		Filename:    "_shared-key.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var shared = require('./_shared')('keys');\nvar uid = require('./_uid');\nmodule.exports = function (key) {\n  return shared[key] || (shared[key] = uid(key));\n};\n"),
+	}
+	file25 := &embedded.EmbeddedFile{
+		Filename:    "_shared.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var global = require('./_global');\nvar SHARED = '__core-js_shared__';\nvar store = global[SHARED] || (global[SHARED] = {});\nmodule.exports = function (key) {\n  return store[key] || (store[key] = {});\n};\n"),
+	}
+	file26 := &embedded.EmbeddedFile{
+		Filename:    "_species-constructor.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// 7.3.20 SpeciesConstructor(O, defaultConstructor)\nvar anObject = require('./_an-object');\nvar aFunction = require('./_a-function');\nvar SPECIES = require('./_wks')('species');\nmodule.exports = function (O, D) {\n  var C = anObject(O).constructor;\n  var S;\n  return C === undefined || (S = anObject(C)[SPECIES]) == undefined ? D : aFunction(S);\n};\n"),
+	}
+	file27 := &embedded.EmbeddedFile{
+		Filename:    "_string-at.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var toInteger = require('./_to-integer');\nvar defined = require('./_defined');\n// true  -> String#at\n// false -> String#codePointAt\nmodule.exports = function (TO_STRING) {\n  return function (that, pos) {\n    var s = String(defined(that));\n    var i = toInteger(pos);\n    var l = s.length;\n    var a, b;\n    if (i < 0 || i >= l) return TO_STRING ? '' : undefined;\n    a = s.charCodeAt(i);\n    return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff\n      ? TO_STRING ? s.charAt(i) : a\n      : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;\n  };\n};\n"),
+	}
+	file28 := &embedded.EmbeddedFile{
+		Filename:    "_string-pad.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://github.com/tc39/proposal-string-pad-start-end\nvar toLength = require('./_to-length');\nvar repeat = require('./_string-repeat');\nvar defined = require('./_defined');\n\nmodule.exports = function (that, maxLength, fillString, left) {\n  var S = String(defined(that));\n  var stringLength = S.length;\n  var fillStr = fillString === undefined ? ' ' : String(fillString);\n  var intMaxLength = toLength(maxLength);\n  if (intMaxLength <= stringLength || fillStr == '') return S;\n  var fillLen = intMaxLength - stringLength;\n  var stringFiller = repeat.call(fillStr, Math.ceil(fillLen / fillStr.length));\n  if (stringFiller.length > fillLen) stringFiller = stringFiller.slice(0, fillLen);\n  return left ? stringFiller + S : S + stringFiller;\n};\n"),
+	}
+	file29 := &embedded.EmbeddedFile{
+		Filename:    "_string-repeat.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\nvar toInteger = require('./_to-integer');\nvar defined = require('./_defined');\n\nmodule.exports = function repeat(count) {\n  var str = String(defined(this));\n  var res = '';\n  var n = toInteger(count);\n  if (n < 0 || n == Infinity) throw RangeError(\"Count can't be negative\");\n  for (;n > 0; (n >>>= 1) && (str += str)) if (n & 1) res += str;\n  return res;\n};\n"),
+	}
+	file2a := &embedded.EmbeddedFile{
+		Filename:    "_string-trim.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var $export = require('./_export');\nvar defined = require('./_defined');\nvar fails = require('./_fails');\nvar spaces = require('./_string-ws');\nvar space = '[' + spaces + ']';\nvar non = '\\u200b\\u0085';\nvar ltrim = RegExp('^' + space + space + '*');\nvar rtrim = RegExp(space + space + '*$');\n\nvar exporter = function (KEY, exec, ALIAS) {\n  var exp = {};\n  var FORCE = fails(function () {\n    return !!spaces[KEY]() || non[KEY]() != non;\n  });\n  var fn = exp[KEY] = FORCE ? exec(trim) : spaces[KEY];\n  if (ALIAS) exp[ALIAS] = fn;\n  $export($export.P + $export.F * FORCE, 'String', exp);\n};\n\n// 1 -> String#trimLeft\n// 2 -> String#trimRight\n// 3 -> String#trim\nvar trim = exporter.trim = function (string, TYPE) {\n  string = String(defined(string));\n  if (TYPE & 1) string = string.replace(ltrim, '');\n  if (TYPE & 2) string = string.replace(rtrim, '');\n  return string;\n};\n\nmodule.exports = exporter;\n"),
+	}
+	file2b := &embedded.EmbeddedFile{
+		Filename:    "_string-ws.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("module.exports = '\\x09\\x0A\\x0B\\x0C\\x0D\\x20\\xA0\\u1680\\u180E\\u2000\\u2001\\u2002\\u2003' +\n  '\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200A\\u202F\\u205F\\u3000\\u2028\\u2029\\uFEFF';\n"),
+	}
+	file2c := &embedded.EmbeddedFile{
+		Filename:    "_task.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var ctx = require('./_ctx');\nvar invoke = require('./_invoke');\nvar html = require('./_html');\nvar cel = require('./_dom-create');\nvar global = require('./_global');\nvar process = global.process;\nvar setTask = global.setImmediate;\nvar clearTask = global.clearImmediate;\nvar MessageChannel = global.MessageChannel;\nvar Dispatch = global.Dispatch;\nvar counter = 0;\nvar queue = {};\nvar ONREADYSTATECHANGE = 'onreadystatechange';\nvar defer, channel, port;\nvar run = function () {\n  var id = +this;\n  // eslint-disable-next-line no-prototype-builtins\n  if (queue.hasOwnProperty(id)) {\n    var fn = queue[id];\n    delete queue[id];\n    fn();\n  }\n};\nvar listener = function (event) {\n  run.call(event.data);\n};\n// Node.js 0.9+ & IE10+ has setImmediate, otherwise:\nif (!setTask || !clearTask) {\n  setTask = function setImmediate(fn) {\n    var args = [];\n    var i = 1;\n    while (arguments.length > i) args.push(arguments[i++]);\n    queue[++counter] = function () {\n      // eslint-disable-next-line no-new-func\n      invoke(typeof fn == 'function' ? fn : Function(fn), args);\n    };\n    defer(counter);\n    return counter;\n  };\n  clearTask = function clearImmediate(id) {\n    delete queue[id];\n  };\n  // Node.js 0.8-\n  if (require('./_cof')(process) == 'process') {\n    defer = function (id) {\n      process.nextTick(ctx(run, id, 1));\n    };\n  // Sphere (JS game engine) Dispatch API\n  } else if (Dispatch && Dispatch.now) {\n    defer = function (id) {\n      Dispatch.now(ctx(run, id, 1));\n    };\n  // Browsers with MessageChannel, includes WebWorkers\n  } else if (MessageChannel) {\n    channel = new MessageChannel();\n    port = channel.port2;\n    channel.port1.onmessage = listener;\n    defer = ctx(port.postMessage, port, 1);\n  // Browsers with postMessage, skip WebWorkers\n  // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'\n  } else if (global.addEventListener && typeof postMessage == 'function' && !global.importScripts) {\n    defer = function (id) {\n      global.postMessage(id + '', '*');\n    };\n    global.addEventListener('message', listener, false);\n  // IE8-\n  } else if (ONREADYSTATECHANGE in cel('script')) {\n    defer = function (id) {\n      html.appendChild(cel('script'))[ONREADYSTATECHANGE] = function () {\n        html.removeChild(this);\n        run.call(id);\n      };\n    };\n  // Rest old browsers\n  } else {\n    defer = function (id) {\n      setTimeout(ctx(run, id, 1), 0);\n    };\n  }\n}\nmodule.exports = {\n  set: setTask,\n  clear: clearTask\n};\n"),
+	}
+	file2d := &embedded.EmbeddedFile{
+		Filename:    "_to-absolute-index.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var toInteger = require('./_to-integer');\nvar max = Math.max;\nvar min = Math.min;\nmodule.exports = function (index, length) {\n  index = toInteger(index);\n  return index < 0 ? max(index + length, 0) : min(index, length);\n};\n"),
+	}
+	file2e := &embedded.EmbeddedFile{
+		Filename:    "_to-integer.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// 7.1.4 ToInteger\nvar ceil = Math.ceil;\nvar floor = Math.floor;\nmodule.exports = function (it) {\n  return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);\n};\n"),
+	}
+	file2f := &embedded.EmbeddedFile{
+		Filename:    "_to-iobject.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// to indexed object, toObject with fallback for non-array-like ES3 strings\nvar IObject = require('./_iobject');\nvar defined = require('./_defined');\nmodule.exports = function (it) {\n  return IObject(defined(it));\n};\n"),
+	}
+	file2g := &embedded.EmbeddedFile{
+		Filename:    "_to-length.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// 7.1.15 ToLength\nvar toInteger = require('./_to-integer');\nvar min = Math.min;\nmodule.exports = function (it) {\n  return it > 0 ? min(toInteger(it), 0x1fffffffffffff) : 0; // pow(2, 53) - 1 == 9007199254740991\n};\n"),
+	}
+	file2h := &embedded.EmbeddedFile{
+		Filename:    "_to-object.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// 7.1.13 ToObject(argument)\nvar defined = require('./_defined');\nmodule.exports = function (it) {\n  return Object(defined(it));\n};\n"),
+	}
+	file2i := &embedded.EmbeddedFile{
+		Filename:    "_to-primitive.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// 7.1.1 ToPrimitive(input [, PreferredType])\nvar isObject = require('./_is-object');\n// instead of the ES6 spec version, we didn't implement @@toPrimitive case\n// and the second argument - flag - preferred type is a string\nmodule.exports = function (it, S) {\n  if (!isObject(it)) return it;\n  var fn, val;\n  if (S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;\n  if (typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it))) return val;\n  if (!S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;\n  throw TypeError(\"Can't convert object to primitive value\");\n};\n"),
+	}
+	file2j := &embedded.EmbeddedFile{
+		Filename:    "_uid.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var id = 0;\nvar px = Math.random();\nmodule.exports = function (key) {\n  return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));\n};\n"),
+	}
+	file2k := &embedded.EmbeddedFile{
+		Filename:    "_validate-collection.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var isObject = require('./_is-object');\nmodule.exports = function (it, TYPE) {\n  if (!isObject(it) || it._t !== TYPE) throw TypeError('Incompatible receiver, ' + TYPE + ' required!');\n  return it;\n};\n"),
+	}
+	file2l := &embedded.EmbeddedFile{
+		Filename:    "_wks-define.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var global = require('./_global');\nvar core = require('./_core');\nvar LIBRARY = require('./_library');\nvar wksExt = require('./_wks-ext');\nvar defineProperty = require('./_object-dp').f;\nmodule.exports = function (name) {\n  var $Symbol = core.Symbol || (core.Symbol = LIBRARY ? {} : global.Symbol || {});\n  if (name.charAt(0) != '_' && !(name in $Symbol)) defineProperty($Symbol, name, { value: wksExt.f(name) });\n};\n"),
+	}
+	file2m := &embedded.EmbeddedFile{
+		Filename:    "_wks-ext.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("exports.f = require('./_wks');\n"),
+	}
+	file2n := &embedded.EmbeddedFile{
+		Filename:    "_wks.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var store = require('./_shared')('wks');\nvar uid = require('./_uid');\nvar Symbol = require('./_global').Symbol;\nvar USE_SYMBOL = typeof Symbol == 'function';\n\nvar $exports = module.exports = function (name) {\n  return store[name] || (store[name] =\n    USE_SYMBOL && Symbol[name] || (USE_SYMBOL ? Symbol : uid)('Symbol.' + name));\n};\n\n$exports.store = store;\n"),
+	}
+	file2o := &embedded.EmbeddedFile{
+		Filename:    "core.get-iterator-method.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var classof = require('./_classof');\nvar ITERATOR = require('./_wks')('iterator');\nvar Iterators = require('./_iterators');\nmodule.exports = require('./_core').getIteratorMethod = function (it) {\n  if (it != undefined) return it[ITERATOR]\n    || it['@@iterator']\n    || Iterators[classof(it)];\n};\n"),
+	}
+	file2p := &embedded.EmbeddedFile{
+		Filename:    "es6.map.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\nvar strong = require('./_collection-strong');\nvar validate = require('./_validate-collection');\nvar MAP = 'Map';\n\n// 23.1 Map Objects\nmodule.exports = require('./_collection')(MAP, function (get) {\n  return function Map() { return get(this, arguments.length > 0 ? arguments[0] : undefined); };\n}, {\n  // 23.1.3.6 Map.prototype.get(key)\n  get: function get(key) {\n    var entry = strong.getEntry(validate(this, MAP), key);\n    return entry && entry.v;\n  },\n  // 23.1.3.9 Map.prototype.set(key, value)\n  set: function set(key, value) {\n    return strong.def(validate(this, MAP), key === 0 ? 0 : key, value);\n  }\n}, strong, true);\n"),
+	}
+	file2q := &embedded.EmbeddedFile{
+		Filename:    "es6.promise.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\nvar LIBRARY = require('./_library');\nvar global = require('./_global');\nvar ctx = require('./_ctx');\nvar classof = require('./_classof');\nvar $export = require('./_export');\nvar isObject = require('./_is-object');\nvar aFunction = require('./_a-function');\nvar anInstance = require('./_an-instance');\nvar forOf = require('./_for-of');\nvar speciesConstructor = require('./_species-constructor');\nvar task = require('./_task').set;\nvar microtask = require('./_microtask')();\nvar newPromiseCapabilityModule = require('./_new-promise-capability');\nvar perform = require('./_perform');\nvar promiseResolve = require('./_promise-resolve');\nvar PROMISE = 'Promise';\nvar TypeError = global.TypeError;\nvar process = global.process;\nvar $Promise = global[PROMISE];\nvar isNode = classof(process) == 'process';\nvar empty = function () { /* empty */ };\nvar Internal, newGenericPromiseCapability, OwnPromiseCapability, Wrapper;\nvar newPromiseCapability = newGenericPromiseCapability = newPromiseCapabilityModule.f;\n\nvar USE_NATIVE = !!function () {\n  try {\n    // correct subclassing with @@species support\n    var promise = $Promise.resolve(1);\n    var FakePromise = (promise.constructor = {})[require('./_wks')('species')] = function (exec) {\n      exec(empty, empty);\n    };\n    // unhandled rejections tracking support, NodeJS Promise without it fails @@species test\n    return (isNode || typeof PromiseRejectionEvent == 'function') && promise.then(empty) instanceof FakePromise;\n  } catch (e) { /* empty */ }\n}();\n\n// helpers\nvar isThenable = function (it) {\n  var then;\n  return isObject(it) && typeof (then = it.then) == 'function' ? then : false;\n};\nvar notify = function (promise, isReject) {\n  if (promise._n) return;\n  promise._n = true;\n  var chain = promise._c;\n  microtask(function () {\n    var value = promise._v;\n    var ok = promise._s == 1;\n    var i = 0;\n    var run = function (reaction) {\n      var handler = ok ? reaction.ok : reaction.fail;\n      var resolve = reaction.resolve;\n      var reject = reaction.reject;\n      var domain = reaction.domain;\n      var result, then;\n      try {\n        if (handler) {\n          if (!ok) {\n            if (promise._h == 2) onHandleUnhandled(promise);\n            promise._h = 1;\n          }\n          if (handler === true) result = value;\n          else {\n            if (domain) domain.enter();\n            result = handler(value);\n            if (domain) domain.exit();\n          }\n          if (result === reaction.promise) {\n            reject(TypeError('Promise-chain cycle'));\n          } else if (then = isThenable(result)) {\n            then.call(result, resolve, reject);\n          } else resolve(result);\n        } else reject(value);\n      } catch (e) {\n        reject(e);\n      }\n    };\n    while (chain.length > i) run(chain[i++]); // variable length - can't use forEach\n    promise._c = [];\n    promise._n = false;\n    if (isReject && !promise._h) onUnhandled(promise);\n  });\n};\nvar onUnhandled = function (promise) {\n  task.call(global, function () {\n    var value = promise._v;\n    var unhandled = isUnhandled(promise);\n    var result, handler, console;\n    if (unhandled) {\n      result = perform(function () {\n        if (isNode) {\n          process.emit('unhandledRejection', value, promise);\n        } else if (handler = global.onunhandledrejection) {\n          handler({ promise: promise, reason: value });\n        } else if ((console = global.console) && console.error) {\n          console.error('Unhandled promise rejection', value);\n        }\n      });\n      // Browsers should not trigger `rejectionHandled` event if it was handled here, NodeJS - should\n      promise._h = isNode || isUnhandled(promise) ? 2 : 1;\n    } promise._a = undefined;\n    if (unhandled && result.e) throw result.v;\n  });\n};\nvar isUnhandled = function (promise) {\n  if (promise._h == 1) return false;\n  var chain = promise._a || promise._c;\n  var i = 0;\n  var reaction;\n  while (chain.length > i) {\n    reaction = chain[i++];\n    if (reaction.fail || !isUnhandled(reaction.promise)) return false;\n  } return true;\n};\nvar onHandleUnhandled = function (promise) {\n  task.call(global, function () {\n    var handler;\n    if (isNode) {\n      process.emit('rejectionHandled', promise);\n    } else if (handler = global.onrejectionhandled) {\n      handler({ promise: promise, reason: promise._v });\n    }\n  });\n};\nvar $reject = function (value) {\n  var promise = this;\n  if (promise._d) return;\n  promise._d = true;\n  promise = promise._w || promise; // unwrap\n  promise._v = value;\n  promise._s = 2;\n  if (!promise._a) promise._a = promise._c.slice();\n  notify(promise, true);\n};\nvar $resolve = function (value) {\n  var promise = this;\n  var then;\n  if (promise._d) return;\n  promise._d = true;\n  promise = promise._w || promise; // unwrap\n  try {\n    if (promise === value) throw TypeError(\"Promise can't be resolved itself\");\n    if (then = isThenable(value)) {\n      microtask(function () {\n        var wrapper = { _w: promise, _d: false }; // wrap\n        try {\n          then.call(value, ctx($resolve, wrapper, 1), ctx($reject, wrapper, 1));\n        } catch (e) {\n          $reject.call(wrapper, e);\n        }\n      });\n    } else {\n      promise._v = value;\n      promise._s = 1;\n      notify(promise, false);\n    }\n  } catch (e) {\n    $reject.call({ _w: promise, _d: false }, e); // wrap\n  }\n};\n\n// constructor polyfill\nif (!USE_NATIVE) {\n  // 25.4.3.1 Promise(executor)\n  $Promise = function Promise(executor) {\n    anInstance(this, $Promise, PROMISE, '_h');\n    aFunction(executor);\n    Internal.call(this);\n    try {\n      executor(ctx($resolve, this, 1), ctx($reject, this, 1));\n    } catch (err) {\n      $reject.call(this, err);\n    }\n  };\n  // eslint-disable-next-line no-unused-vars\n  Internal = function Promise(executor) {\n    this._c = [];             // <- awaiting reactions\n    this._a = undefined;      // <- checked in isUnhandled reactions\n    this._s = 0;              // <- state\n    this._d = false;          // <- done\n    this._v = undefined;      // <- value\n    this._h = 0;              // <- rejection state, 0 - default, 1 - handled, 2 - unhandled\n    this._n = false;          // <- notify\n  };\n  Internal.prototype = require('./_redefine-all')($Promise.prototype, {\n    // 25.4.5.3 Promise.prototype.then(onFulfilled, onRejected)\n    then: function then(onFulfilled, onRejected) {\n      var reaction = newPromiseCapability(speciesConstructor(this, $Promise));\n      reaction.ok = typeof onFulfilled == 'function' ? onFulfilled : true;\n      reaction.fail = typeof onRejected == 'function' && onRejected;\n      reaction.domain = isNode ? process.domain : undefined;\n      this._c.push(reaction);\n      if (this._a) this._a.push(reaction);\n      if (this._s) notify(this, false);\n      return reaction.promise;\n    },\n    // 25.4.5.1 Promise.prototype.catch(onRejected)\n    'catch': function (onRejected) {\n      return this.then(undefined, onRejected);\n    }\n  });\n  OwnPromiseCapability = function () {\n    var promise = new Internal();\n    this.promise = promise;\n    this.resolve = ctx($resolve, promise, 1);\n    this.reject = ctx($reject, promise, 1);\n  };\n  newPromiseCapabilityModule.f = newPromiseCapability = function (C) {\n    return C === $Promise || C === Wrapper\n      ? new OwnPromiseCapability(C)\n      : newGenericPromiseCapability(C);\n  };\n}\n\n$export($export.G + $export.W + $export.F * !USE_NATIVE, { Promise: $Promise });\nrequire('./_set-to-string-tag')($Promise, PROMISE);\nrequire('./_set-species')(PROMISE);\nWrapper = require('./_core')[PROMISE];\n\n// statics\n$export($export.S + $export.F * !USE_NATIVE, PROMISE, {\n  // 25.4.4.5 Promise.reject(r)\n  reject: function reject(r) {\n    var capability = newPromiseCapability(this);\n    var $$reject = capability.reject;\n    $$reject(r);\n    return capability.promise;\n  }\n});\n$export($export.S + $export.F * (LIBRARY || !USE_NATIVE), PROMISE, {\n  // 25.4.4.6 Promise.resolve(x)\n  resolve: function resolve(x) {\n    return promiseResolve(LIBRARY && this === Wrapper ? $Promise : this, x);\n  }\n});\n$export($export.S + $export.F * !(USE_NATIVE && require('./_iter-detect')(function (iter) {\n  $Promise.all(iter)['catch'](empty);\n})), PROMISE, {\n  // 25.4.4.1 Promise.all(iterable)\n  all: function all(iterable) {\n    var C = this;\n    var capability = newPromiseCapability(C);\n    var resolve = capability.resolve;\n    var reject = capability.reject;\n    var result = perform(function () {\n      var values = [];\n      var index = 0;\n      var remaining = 1;\n      forOf(iterable, false, function (promise) {\n        var $index = index++;\n        var alreadyCalled = false;\n        values.push(undefined);\n        remaining++;\n        C.resolve(promise).then(function (value) {\n          if (alreadyCalled) return;\n          alreadyCalled = true;\n          values[$index] = value;\n          --remaining || resolve(values);\n        }, reject);\n      });\n      --remaining || resolve(values);\n    });\n    if (result.e) reject(result.v);\n    return capability.promise;\n  },\n  // 25.4.4.4 Promise.race(iterable)\n  race: function race(iterable) {\n    var C = this;\n    var capability = newPromiseCapability(C);\n    var reject = capability.reject;\n    var result = perform(function () {\n      forOf(iterable, false, function (promise) {\n        C.resolve(promise).then(capability.resolve, reject);\n      });\n    });\n    if (result.e) reject(result.v);\n    return capability.promise;\n  }\n});\n"),
+	}
+	file2r := &embedded.EmbeddedFile{
+		Filename:    "es6.set.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\nvar strong = require('./_collection-strong');\nvar validate = require('./_validate-collection');\nvar SET = 'Set';\n\n// 23.2 Set Objects\nmodule.exports = require('./_collection')(SET, function (get) {\n  return function Set() { return get(this, arguments.length > 0 ? arguments[0] : undefined); };\n}, {\n  // 23.2.3.1 Set.prototype.add(value)\n  add: function add(value) {\n    return strong.def(validate(this, SET), value = value === 0 ? 0 : value, value);\n  }\n}, strong);\n"),
+	}
+	file2s := &embedded.EmbeddedFile{
+		Filename:    "es6.weak-map.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\nvar each = require('./_array-methods')(0);\nvar redefine = require('./_redefine');\nvar meta = require('./_meta');\nvar assign = require('./_object-assign');\nvar weak = require('./_collection-weak');\nvar isObject = require('./_is-object');\nvar fails = require('./_fails');\nvar validate = require('./_validate-collection');\nvar WEAK_MAP = 'WeakMap';\nvar getWeak = meta.getWeak;\nvar isExtensible = Object.isExtensible;\nvar uncaughtFrozenStore = weak.ufstore;\nvar tmp = {};\nvar InternalMap;\n\nvar wrapper = function (get) {\n  return function WeakMap() {\n    return get(this, arguments.length > 0 ? arguments[0] : undefined);\n  };\n};\n\nvar methods = {\n  // 23.3.3.3 WeakMap.prototype.get(key)\n  get: function get(key) {\n    if (isObject(key)) {\n      var data = getWeak(key);\n      if (data === true) return uncaughtFrozenStore(validate(this, WEAK_MAP)).get(key);\n      return data ? data[this._i] : undefined;\n    }\n  },\n  // 23.3.3.5 WeakMap.prototype.set(key, value)\n  set: function set(key, value) {\n    return weak.def(validate(this, WEAK_MAP), key, value);\n  }\n};\n\n// 23.3 WeakMap Objects\nvar $WeakMap = module.exports = require('./_collection')(WEAK_MAP, wrapper, methods, weak, true, true);\n\n// IE11 WeakMap frozen keys fix\nif (fails(function () { return new $WeakMap().set((Object.freeze || Object)(tmp), 7).get(tmp) != 7; })) {\n  InternalMap = weak.getConstructor(wrapper, WEAK_MAP);\n  assign(InternalMap.prototype, methods);\n  meta.NEED = true;\n  each(['delete', 'has', 'get', 'set'], function (key) {\n    var proto = $WeakMap.prototype;\n    var method = proto[key];\n    redefine(proto, key, function (a, b) {\n      // store frozen objects on internal weakmap shim\n      if (isObject(a) && !isExtensible(a)) {\n        if (!this._f) this._f = new InternalMap();\n        var result = this._f[key](a, b);\n        return key == 'set' ? this : result;\n      // store all the rest on native weakmap\n      } return method.call(this, a, b);\n    });\n  });\n}\n"),
+	}
+	file2t := &embedded.EmbeddedFile{
+		Filename:    "es7.array.flat-map.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\n// https://tc39.github.io/proposal-flatMap/#sec-Array.prototype.flatMap\nvar $export = require('./_export');\nvar flattenIntoArray = require('./_flatten-into-array');\nvar toObject = require('./_to-object');\nvar toLength = require('./_to-length');\nvar aFunction = require('./_a-function');\nvar arraySpeciesCreate = require('./_array-species-create');\n\n$export($export.P, 'Array', {\n  flatMap: function flatMap(callbackfn /* , thisArg */) {\n    var O = toObject(this);\n    var sourceLen, A;\n    aFunction(callbackfn);\n    sourceLen = toLength(O.length);\n    A = arraySpeciesCreate(O, 0);\n    flattenIntoArray(A, O, O, sourceLen, 0, 1, callbackfn, arguments[1]);\n    return A;\n  }\n});\n\nrequire('./_add-to-unscopables')('flatMap');\n"),
+	}
+	file2u := &embedded.EmbeddedFile{
+		Filename:    "es7.array.flatten.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\n// https://tc39.github.io/proposal-flatMap/#sec-Array.prototype.flatten\nvar $export = require('./_export');\nvar flattenIntoArray = require('./_flatten-into-array');\nvar toObject = require('./_to-object');\nvar toLength = require('./_to-length');\nvar toInteger = require('./_to-integer');\nvar arraySpeciesCreate = require('./_array-species-create');\n\n$export($export.P, 'Array', {\n  flatten: function flatten(/* depthArg = 1 */) {\n    var depthArg = arguments[0];\n    var O = toObject(this);\n    var sourceLen = toLength(O.length);\n    var A = arraySpeciesCreate(O, 0);\n    flattenIntoArray(A, O, O, sourceLen, 0, depthArg === undefined ? 1 : toInteger(depthArg));\n    return A;\n  }\n});\n\nrequire('./_add-to-unscopables')('flatten');\n"),
+	}
+	file2v := &embedded.EmbeddedFile{
+		Filename:    "es7.asap.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://github.com/rwaldron/tc39-notes/blob/master/es6/2014-09/sept-25.md#510-globalasap-for-enqueuing-a-microtask\nvar $export = require('./_export');\nvar microtask = require('./_microtask')();\nvar process = require('./_global').process;\nvar isNode = require('./_cof')(process) == 'process';\n\n$export($export.G, {\n  asap: function asap(fn) {\n    var domain = isNode && process.domain;\n    microtask(domain ? domain.bind(fn) : fn);\n  }\n});\n"),
+	}
+	file2w := &embedded.EmbeddedFile{
+		Filename:    "es7.error.is-error.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://github.com/ljharb/proposal-is-error\nvar $export = require('./_export');\nvar cof = require('./_cof');\n\n$export($export.S, 'Error', {\n  isError: function isError(it) {\n    return cof(it) === 'Error';\n  }\n});\n"),
+	}
+	file2x := &embedded.EmbeddedFile{
+		Filename:    "es7.global.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://github.com/tc39/proposal-global\nvar $export = require('./_export');\n\n$export($export.G, { global: require('./_global') });\n"),
+	}
+	file2y := &embedded.EmbeddedFile{
+		Filename:    "es7.map.from.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://tc39.github.io/proposal-setmap-offrom/#sec-map.from\nrequire('./_set-collection-from')('Map');\n"),
+	}
+	file2z := &embedded.EmbeddedFile{
+		Filename:    "es7.map.of.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://tc39.github.io/proposal-setmap-offrom/#sec-map.of\nrequire('./_set-collection-of')('Map');\n"),
+	}
+	file30 := &embedded.EmbeddedFile{
+		Filename:    "es7.map.to-json.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://github.com/DavidBruant/Map-Set.prototype.toJSON\nvar $export = require('./_export');\n\n$export($export.P + $export.R, 'Map', { toJSON: require('./_collection-to-json')('Map') });\n"),
+	}
+	file31 := &embedded.EmbeddedFile{
+		Filename:    "es7.object.define-getter.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\nvar $export = require('./_export');\nvar toObject = require('./_to-object');\nvar aFunction = require('./_a-function');\nvar $defineProperty = require('./_object-dp');\n\n// B.2.2.2 Object.prototype.__defineGetter__(P, getter)\nrequire('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {\n  __defineGetter__: function __defineGetter__(P, getter) {\n    $defineProperty.f(toObject(this), P, { get: aFunction(getter), enumerable: true, configurable: true });\n  }\n});\n"),
+	}
+	file32 := &embedded.EmbeddedFile{
+		Filename:    "es7.object.define-setter.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\nvar $export = require('./_export');\nvar toObject = require('./_to-object');\nvar aFunction = require('./_a-function');\nvar $defineProperty = require('./_object-dp');\n\n// B.2.2.3 Object.prototype.__defineSetter__(P, setter)\nrequire('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {\n  __defineSetter__: function __defineSetter__(P, setter) {\n    $defineProperty.f(toObject(this), P, { set: aFunction(setter), enumerable: true, configurable: true });\n  }\n});\n"),
+	}
+	file33 := &embedded.EmbeddedFile{
+		Filename:    "es7.object.entries.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://github.com/tc39/proposal-object-values-entries\nvar $export = require('./_export');\nvar $entries = require('./_object-to-array')(true);\n\n$export($export.S, 'Object', {\n  entries: function entries(it) {\n    return $entries(it);\n  }\n});\n"),
+	}
+	file34 := &embedded.EmbeddedFile{
+		Filename:    "es7.object.get-own-property-descriptors.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://github.com/tc39/proposal-object-getownpropertydescriptors\nvar $export = require('./_export');\nvar ownKeys = require('./_own-keys');\nvar toIObject = require('./_to-iobject');\nvar gOPD = require('./_object-gopd');\nvar createProperty = require('./_create-property');\n\n$export($export.S, 'Object', {\n  getOwnPropertyDescriptors: function getOwnPropertyDescriptors(object) {\n    var O = toIObject(object);\n    var getDesc = gOPD.f;\n    var keys = ownKeys(O);\n    var result = {};\n    var i = 0;\n    var key, desc;\n    while (keys.length > i) {\n      desc = getDesc(O, key = keys[i++]);\n      if (desc !== undefined) createProperty(result, key, desc);\n    }\n    return result;\n  }\n});\n"),
+	}
+	file35 := &embedded.EmbeddedFile{
+		Filename:    "es7.object.lookup-getter.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\nvar $export = require('./_export');\nvar toObject = require('./_to-object');\nvar toPrimitive = require('./_to-primitive');\nvar getPrototypeOf = require('./_object-gpo');\nvar getOwnPropertyDescriptor = require('./_object-gopd').f;\n\n// B.2.2.4 Object.prototype.__lookupGetter__(P)\nrequire('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {\n  __lookupGetter__: function __lookupGetter__(P) {\n    var O = toObject(this);\n    var K = toPrimitive(P, true);\n    var D;\n    do {\n      if (D = getOwnPropertyDescriptor(O, K)) return D.get;\n    } while (O = getPrototypeOf(O));\n  }\n});\n"),
+	}
+	file36 := &embedded.EmbeddedFile{
+		Filename:    "es7.object.lookup-setter.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\nvar $export = require('./_export');\nvar toObject = require('./_to-object');\nvar toPrimitive = require('./_to-primitive');\nvar getPrototypeOf = require('./_object-gpo');\nvar getOwnPropertyDescriptor = require('./_object-gopd').f;\n\n// B.2.2.5 Object.prototype.__lookupSetter__(P)\nrequire('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {\n  __lookupSetter__: function __lookupSetter__(P) {\n    var O = toObject(this);\n    var K = toPrimitive(P, true);\n    var D;\n    do {\n      if (D = getOwnPropertyDescriptor(O, K)) return D.set;\n    } while (O = getPrototypeOf(O));\n  }\n});\n"),
+	}
+	file37 := &embedded.EmbeddedFile{
+		Filename:    "es7.object.values.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://github.com/tc39/proposal-object-values-entries\nvar $export = require('./_export');\nvar $values = require('./_object-to-array')(false);\n\n$export($export.S, 'Object', {\n  values: function values(it) {\n    return $values(it);\n  }\n});\n"),
+	}
+	file38 := &embedded.EmbeddedFile{
+		Filename:    "es7.observable.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\n// https://github.com/zenparsing/es-observable\nvar $export = require('./_export');\nvar global = require('./_global');\nvar core = require('./_core');\nvar microtask = require('./_microtask')();\nvar OBSERVABLE = require('./_wks')('observable');\nvar aFunction = require('./_a-function');\nvar anObject = require('./_an-object');\nvar anInstance = require('./_an-instance');\nvar redefineAll = require('./_redefine-all');\nvar hide = require('./_hide');\nvar forOf = require('./_for-of');\nvar RETURN = forOf.RETURN;\n\nvar getMethod = function (fn) {\n  return fn == null ? undefined : aFunction(fn);\n};\n\nvar cleanupSubscription = function (subscription) {\n  var cleanup = subscription._c;\n  if (cleanup) {\n    subscription._c = undefined;\n    cleanup();\n  }\n};\n\nvar subscriptionClosed = function (subscription) {\n  return subscription._o === undefined;\n};\n\nvar closeSubscription = function (subscription) {\n  if (!subscriptionClosed(subscription)) {\n    subscription._o = undefined;\n    cleanupSubscription(subscription);\n  }\n};\n\nvar Subscription = function (observer, subscriber) {\n  anObject(observer);\n  this._c = undefined;\n  this._o = observer;\n  observer = new SubscriptionObserver(this);\n  try {\n    var cleanup = subscriber(observer);\n    var subscription = cleanup;\n    if (cleanup != null) {\n      if (typeof cleanup.unsubscribe === 'function') cleanup = function () { subscription.unsubscribe(); };\n      else aFunction(cleanup);\n      this._c = cleanup;\n    }\n  } catch (e) {\n    observer.error(e);\n    return;\n  } if (subscriptionClosed(this)) cleanupSubscription(this);\n};\n\nSubscription.prototype = redefineAll({}, {\n  unsubscribe: function unsubscribe() { closeSubscription(this); }\n});\n\nvar SubscriptionObserver = function (subscription) {\n  this._s = subscription;\n};\n\nSubscriptionObserver.prototype = redefineAll({}, {\n  next: function next(value) {\n    var subscription = this._s;\n    if (!subscriptionClosed(subscription)) {\n      var observer = subscription._o;\n      try {\n        var m = getMethod(observer.next);\n        if (m) return m.call(observer, value);\n      } catch (e) {\n        try {\n          closeSubscription(subscription);\n        } finally {\n          throw e;\n        }\n      }\n    }\n  },\n  error: function error(value) {\n    var subscription = this._s;\n    if (subscriptionClosed(subscription)) throw value;\n    var observer = subscription._o;\n    subscription._o = undefined;\n    try {\n      var m = getMethod(observer.error);\n      if (!m) throw value;\n      value = m.call(observer, value);\n    } catch (e) {\n      try {\n        cleanupSubscription(subscription);\n      } finally {\n        throw e;\n      }\n    } cleanupSubscription(subscription);\n    return value;\n  },\n  complete: function complete(value) {\n    var subscription = this._s;\n    if (!subscriptionClosed(subscription)) {\n      var observer = subscription._o;\n      subscription._o = undefined;\n      try {\n        var m = getMethod(observer.complete);\n        value = m ? m.call(observer, value) : undefined;\n      } catch (e) {\n        try {\n          cleanupSubscription(subscription);\n        } finally {\n          throw e;\n        }\n      } cleanupSubscription(subscription);\n      return value;\n    }\n  }\n});\n\nvar $Observable = function Observable(subscriber) {\n  anInstance(this, $Observable, 'Observable', '_f')._f = aFunction(subscriber);\n};\n\nredefineAll($Observable.prototype, {\n  subscribe: function subscribe(observer) {\n    return new Subscription(observer, this._f);\n  },\n  forEach: function forEach(fn) {\n    var that = this;\n    return new (core.Promise || global.Promise)(function (resolve, reject) {\n      aFunction(fn);\n      var subscription = that.subscribe({\n        next: function (value) {\n          try {\n            return fn(value);\n          } catch (e) {\n            reject(e);\n            subscription.unsubscribe();\n          }\n        },\n        error: reject,\n        complete: resolve\n      });\n    });\n  }\n});\n\nredefineAll($Observable, {\n  from: function from(x) {\n    var C = typeof this === 'function' ? this : $Observable;\n    var method = getMethod(anObject(x)[OBSERVABLE]);\n    if (method) {\n      var observable = anObject(method.call(x));\n      return observable.constructor === C ? observable : new C(function (observer) {\n        return observable.subscribe(observer);\n      });\n    }\n    return new C(function (observer) {\n      var done = false;\n      microtask(function () {\n        if (!done) {\n          try {\n            if (forOf(x, false, function (it) {\n              observer.next(it);\n              if (done) return RETURN;\n            }) === RETURN) return;\n          } catch (e) {\n            if (done) throw e;\n            observer.error(e);\n            return;\n          } observer.complete();\n        }\n      });\n      return function () { done = true; };\n    });\n  },\n  of: function of() {\n    for (var i = 0, l = arguments.length, items = Array(l); i < l;) items[i] = arguments[i++];\n    return new (typeof this === 'function' ? this : $Observable)(function (observer) {\n      var done = false;\n      microtask(function () {\n        if (!done) {\n          for (var j = 0; j < items.length; ++j) {\n            observer.next(items[j]);\n            if (done) return;\n          } observer.complete();\n        }\n      });\n      return function () { done = true; };\n    });\n  }\n});\n\nhide($Observable.prototype, OBSERVABLE, function () { return this; });\n\n$export($export.G, { Observable: $Observable });\n\nrequire('./_set-species')('Observable');\n"),
+	}
+	file39 := &embedded.EmbeddedFile{
+		Filename:    "es7.promise.finally.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://github.com/tc39/proposal-promise-finally\n'use strict';\nvar $export = require('./_export');\nvar core = require('./_core');\nvar global = require('./_global');\nvar speciesConstructor = require('./_species-constructor');\nvar promiseResolve = require('./_promise-resolve');\n\n$export($export.P + $export.R, 'Promise', { 'finally': function (onFinally) {\n  var C = speciesConstructor(this, core.Promise || global.Promise);\n  var isFunction = typeof onFinally == 'function';\n  return this.then(\n    isFunction ? function (x) {\n      return promiseResolve(C, onFinally()).then(function () { return x; });\n    } : onFinally,\n    isFunction ? function (e) {\n      return promiseResolve(C, onFinally()).then(function () { throw e; });\n    } : onFinally\n  );\n} });\n"),
+	}
+	file3a := &embedded.EmbeddedFile{
+		Filename:    "es7.promise.try.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\n// https://github.com/tc39/proposal-promise-try\nvar $export = require('./_export');\nvar newPromiseCapability = require('./_new-promise-capability');\nvar perform = require('./_perform');\n\n$export($export.S, 'Promise', { 'try': function (callbackfn) {\n  var promiseCapability = newPromiseCapability.f(this);\n  var result = perform(callbackfn);\n  (result.e ? promiseCapability.reject : promiseCapability.resolve)(result.v);\n  return promiseCapability.promise;\n} });\n"),
+	}
+	file3b := &embedded.EmbeddedFile{
+		Filename:    "es7.reflect.define-metadata.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar toMetaKey = metadata.key;\nvar ordinaryDefineOwnMetadata = metadata.set;\n\nmetadata.exp({ defineMetadata: function defineMetadata(metadataKey, metadataValue, target, targetKey) {\n  ordinaryDefineOwnMetadata(metadataKey, metadataValue, anObject(target), toMetaKey(targetKey));\n} });\n"),
+	}
+	file3c := &embedded.EmbeddedFile{
+		Filename:    "es7.reflect.delete-metadata.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar toMetaKey = metadata.key;\nvar getOrCreateMetadataMap = metadata.map;\nvar store = metadata.store;\n\nmetadata.exp({ deleteMetadata: function deleteMetadata(metadataKey, target /* , targetKey */) {\n  var targetKey = arguments.length < 3 ? undefined : toMetaKey(arguments[2]);\n  var metadataMap = getOrCreateMetadataMap(anObject(target), targetKey, false);\n  if (metadataMap === undefined || !metadataMap['delete'](metadataKey)) return false;\n  if (metadataMap.size) return true;\n  var targetMetadata = store.get(target);\n  targetMetadata['delete'](targetKey);\n  return !!targetMetadata.size || store['delete'](target);\n} });\n"),
+	}
+	file3d := &embedded.EmbeddedFile{
+		Filename:    "es7.reflect.get-metadata-keys.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var Set = require('./es6.set');\nvar from = require('./_array-from-iterable');\nvar metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar getPrototypeOf = require('./_object-gpo');\nvar ordinaryOwnMetadataKeys = metadata.keys;\nvar toMetaKey = metadata.key;\n\nvar ordinaryMetadataKeys = function (O, P) {\n  var oKeys = ordinaryOwnMetadataKeys(O, P);\n  var parent = getPrototypeOf(O);\n  if (parent === null) return oKeys;\n  var pKeys = ordinaryMetadataKeys(parent, P);\n  return pKeys.length ? oKeys.length ? from(new Set(oKeys.concat(pKeys))) : pKeys : oKeys;\n};\n\nmetadata.exp({ getMetadataKeys: function getMetadataKeys(target /* , targetKey */) {\n  return ordinaryMetadataKeys(anObject(target), arguments.length < 2 ? undefined : toMetaKey(arguments[1]));\n} });\n"),
+	}
+	file3e := &embedded.EmbeddedFile{
+		Filename:    "es7.reflect.get-metadata.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar getPrototypeOf = require('./_object-gpo');\nvar ordinaryHasOwnMetadata = metadata.has;\nvar ordinaryGetOwnMetadata = metadata.get;\nvar toMetaKey = metadata.key;\n\nvar ordinaryGetMetadata = function (MetadataKey, O, P) {\n  var hasOwn = ordinaryHasOwnMetadata(MetadataKey, O, P);\n  if (hasOwn) return ordinaryGetOwnMetadata(MetadataKey, O, P);\n  var parent = getPrototypeOf(O);\n  return parent !== null ? ordinaryGetMetadata(MetadataKey, parent, P) : undefined;\n};\n\nmetadata.exp({ getMetadata: function getMetadata(metadataKey, target /* , targetKey */) {\n  return ordinaryGetMetadata(metadataKey, anObject(target), arguments.length < 3 ? undefined : toMetaKey(arguments[2]));\n} });\n"),
+	}
+	file3f := &embedded.EmbeddedFile{
+		Filename:    "es7.reflect.get-own-metadata-keys.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar ordinaryOwnMetadataKeys = metadata.keys;\nvar toMetaKey = metadata.key;\n\nmetadata.exp({ getOwnMetadataKeys: function getOwnMetadataKeys(target /* , targetKey */) {\n  return ordinaryOwnMetadataKeys(anObject(target), arguments.length < 2 ? undefined : toMetaKey(arguments[1]));\n} });\n"),
+	}
+	file3g := &embedded.EmbeddedFile{
+		Filename:    "es7.reflect.get-own-metadata.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar ordinaryGetOwnMetadata = metadata.get;\nvar toMetaKey = metadata.key;\n\nmetadata.exp({ getOwnMetadata: function getOwnMetadata(metadataKey, target /* , targetKey */) {\n  return ordinaryGetOwnMetadata(metadataKey, anObject(target)\n    , arguments.length < 3 ? undefined : toMetaKey(arguments[2]));\n} });\n"),
+	}
+	file3h := &embedded.EmbeddedFile{
+		Filename:    "es7.reflect.has-metadata.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar getPrototypeOf = require('./_object-gpo');\nvar ordinaryHasOwnMetadata = metadata.has;\nvar toMetaKey = metadata.key;\n\nvar ordinaryHasMetadata = function (MetadataKey, O, P) {\n  var hasOwn = ordinaryHasOwnMetadata(MetadataKey, O, P);\n  if (hasOwn) return true;\n  var parent = getPrototypeOf(O);\n  return parent !== null ? ordinaryHasMetadata(MetadataKey, parent, P) : false;\n};\n\nmetadata.exp({ hasMetadata: function hasMetadata(metadataKey, target /* , targetKey */) {\n  return ordinaryHasMetadata(metadataKey, anObject(target), arguments.length < 3 ? undefined : toMetaKey(arguments[2]));\n} });\n"),
+	}
+	file3i := &embedded.EmbeddedFile{
+		Filename:    "es7.reflect.has-own-metadata.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar ordinaryHasOwnMetadata = metadata.has;\nvar toMetaKey = metadata.key;\n\nmetadata.exp({ hasOwnMetadata: function hasOwnMetadata(metadataKey, target /* , targetKey */) {\n  return ordinaryHasOwnMetadata(metadataKey, anObject(target)\n    , arguments.length < 3 ? undefined : toMetaKey(arguments[2]));\n} });\n"),
+	}
+	file3j := &embedded.EmbeddedFile{
+		Filename:    "es7.reflect.metadata.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("var $metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar aFunction = require('./_a-function');\nvar toMetaKey = $metadata.key;\nvar ordinaryDefineOwnMetadata = $metadata.set;\n\n$metadata.exp({ metadata: function metadata(metadataKey, metadataValue) {\n  return function decorator(target, targetKey) {\n    ordinaryDefineOwnMetadata(\n      metadataKey, metadataValue,\n      (targetKey !== undefined ? anObject : aFunction)(target),\n      toMetaKey(targetKey)\n    );\n  };\n} });\n"),
+	}
+	file3k := &embedded.EmbeddedFile{
+		Filename:    "es7.set.from.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://tc39.github.io/proposal-setmap-offrom/#sec-set.from\nrequire('./_set-collection-from')('Set');\n"),
+	}
+	file3l := &embedded.EmbeddedFile{
+		Filename:    "es7.set.of.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://tc39.github.io/proposal-setmap-offrom/#sec-set.of\nrequire('./_set-collection-of')('Set');\n"),
+	}
+	file3m := &embedded.EmbeddedFile{
+		Filename:    "es7.set.to-json.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://github.com/DavidBruant/Map-Set.prototype.toJSON\nvar $export = require('./_export');\n\n$export($export.P + $export.R, 'Set', { toJSON: require('./_collection-to-json')('Set') });\n"),
+	}
+	file3n := &embedded.EmbeddedFile{
+		Filename:    "es7.string.at.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\n// https://github.com/mathiasbynens/String.prototype.at\nvar $export = require('./_export');\nvar $at = require('./_string-at')(true);\n\n$export($export.P, 'String', {\n  at: function at(pos) {\n    return $at(this, pos);\n  }\n});\n"),
+	}
+	file3o := &embedded.EmbeddedFile{
+		Filename:    "es7.string.match-all.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\n// https://tc39.github.io/String.prototype.matchAll/\nvar $export = require('./_export');\nvar defined = require('./_defined');\nvar toLength = require('./_to-length');\nvar isRegExp = require('./_is-regexp');\nvar getFlags = require('./_flags');\nvar RegExpProto = RegExp.prototype;\n\nvar $RegExpStringIterator = function (regexp, string) {\n  this._r = regexp;\n  this._s = string;\n};\n\nrequire('./_iter-create')($RegExpStringIterator, 'RegExp String', function next() {\n  var match = this._r.exec(this._s);\n  return { value: match, done: match === null };\n});\n\n$export($export.P, 'String', {\n  matchAll: function matchAll(regexp) {\n    defined(this);\n    if (!isRegExp(regexp)) throw TypeError(regexp + ' is not a regexp!');\n    var S = String(this);\n    var flags = 'flags' in RegExpProto ? String(regexp.flags) : getFlags.call(regexp);\n    var rx = new RegExp(regexp.source, ~flags.indexOf('g') ? flags : 'g' + flags);\n    rx.lastIndex = toLength(regexp.lastIndex);\n    return new $RegExpStringIterator(rx, S);\n  }\n});\n"),
+	}
+	file3p := &embedded.EmbeddedFile{
+		Filename:    "es7.string.pad-end.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\n// https://github.com/tc39/proposal-string-pad-start-end\nvar $export = require('./_export');\nvar $pad = require('./_string-pad');\n\n$export($export.P, 'String', {\n  padEnd: function padEnd(maxLength /* , fillString = ' ' */) {\n    return $pad(this, maxLength, arguments.length > 1 ? arguments[1] : undefined, false);\n  }\n});\n"),
+	}
+	file3q := &embedded.EmbeddedFile{
+		Filename:    "es7.string.pad-start.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\n// https://github.com/tc39/proposal-string-pad-start-end\nvar $export = require('./_export');\nvar $pad = require('./_string-pad');\n\n$export($export.P, 'String', {\n  padStart: function padStart(maxLength /* , fillString = ' ' */) {\n    return $pad(this, maxLength, arguments.length > 1 ? arguments[1] : undefined, true);\n  }\n});\n"),
+	}
+	file3r := &embedded.EmbeddedFile{
+		Filename:    "es7.string.trim-left.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\n// https://github.com/sebmarkbage/ecmascript-string-left-right-trim\nrequire('./_string-trim')('trimLeft', function ($trim) {\n  return function trimLeft() {\n    return $trim(this, 1);\n  };\n}, 'trimStart');\n"),
+	}
+	file3s := &embedded.EmbeddedFile{
+		Filename:    "es7.string.trim-right.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("'use strict';\n// https://github.com/sebmarkbage/ecmascript-string-left-right-trim\nrequire('./_string-trim')('trimRight', function ($trim) {\n  return function trimRight() {\n    return $trim(this, 2);\n  };\n}, 'trimEnd');\n"),
+	}
+	file3t := &embedded.EmbeddedFile{
+		Filename:    "es7.symbol.async-iterator.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("require('./_wks-define')('asyncIterator');\n"),
+	}
+	file3u := &embedded.EmbeddedFile{
+		Filename:    "es7.symbol.observable.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("require('./_wks-define')('observable');\n"),
+	}
+	file3v := &embedded.EmbeddedFile{
+		Filename:    "es7.system.global.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://github.com/tc39/proposal-global\nvar $export = require('./_export');\n\n$export($export.S, 'System', { global: require('./_global') });\n"),
+	}
+	file3w := &embedded.EmbeddedFile{
+		Filename:    "es7.weak-map.from.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://tc39.github.io/proposal-setmap-offrom/#sec-weakmap.from\nrequire('./_set-collection-from')('WeakMap');\n"),
+	}
+	file3x := &embedded.EmbeddedFile{
+		Filename:    "es7.weak-map.of.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://tc39.github.io/proposal-setmap-offrom/#sec-weakmap.of\nrequire('./_set-collection-of')('WeakMap');\n"),
+	}
+	file3y := &embedded.EmbeddedFile{
+		Filename:    "es7.weak-set.from.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://tc39.github.io/proposal-setmap-offrom/#sec-weakset.from\nrequire('./_set-collection-from')('WeakSet');\n"),
+	}
+	file3z := &embedded.EmbeddedFile{
+		Filename:    "es7.weak-set.of.js",
+		FileModTime: time.Unix(1605797754, 0),
+
+		Content: string("// https://tc39.github.io/proposal-setmap-offrom/#sec-weakset.of\nrequire('./_set-collection-of')('WeakSet');\n"),
 	}
 
 	// define dirs
 	dir1 := &embedded.EmbeddedDir{
 		Filename:   "",
-		DirModTime: time.Unix(1527777843, 0),
+		DirModTime: time.Unix(1605797780, 0),
 		ChildFiles: []*embedded.EmbeddedFile{
-			file2, // "shim.min.js"
+			file2,  // "_a-function.js"
+			file3,  // "_add-to-unscopables.js"
+			file4,  // "_an-instance.js"
+			file5,  // "_an-object.js"
+			file6,  // "_array-from-iterable.js"
+			file7,  // "_array-includes.js"
+			file8,  // "_array-methods.js"
+			file9,  // "_array-species-constructor.js"
+			filea,  // "_array-species-create.js"
+			fileb,  // "_classof.js"
+			filec,  // "_cof.js"
+			filed,  // "_collection-strong.js"
+			filee,  // "_collection-to-json.js"
+			filef,  // "_collection-weak.js"
+			fileg,  // "_collection.js"
+			fileh,  // "_core.js"
+			filei,  // "_create-property.js"
+			filej,  // "_ctx.js"
+			filek,  // "_defined.js"
+			filel,  // "_descriptors.js"
+			filem,  // "_dom-create.js"
+			filen,  // "_enum-bug-keys.js"
+			fileo,  // "_export.js"
+			filep,  // "_fails.js"
+			fileq,  // "_flags.js"
+			filer,  // "_flatten-into-array.js"
+			files,  // "_for-of.js"
+			filet,  // "_global.js"
+			fileu,  // "_has.js"
+			filev,  // "_hide.js"
+			filew,  // "_html.js"
+			filex,  // "_ie8-dom-define.js"
+			filey,  // "_inherit-if-required.js"
+			filez,  // "_invoke.js"
+			file10, // "_iobject.js"
+			file11, // "_is-array-iter.js"
+			file12, // "_is-array.js"
+			file13, // "_is-object.js"
+			file14, // "_is-regexp.js"
+			file15, // "_iter-call.js"
+			file16, // "_iter-create.js"
+			file17, // "_iter-define.js"
+			file18, // "_iter-detect.js"
+			file19, // "_iter-step.js"
+			file1a, // "_iterators.js"
+			file1b, // "_library.js"
+			file1c, // "_meta.js"
+			file1d, // "_metadata.js"
+			file1e, // "_microtask.js"
+			file1f, // "_new-promise-capability.js"
+			file1g, // "_object-assign.js"
+			file1h, // "_object-create.js"
+			file1i, // "_object-dp.js"
+			file1j, // "_object-dps.js"
+			file1k, // "_object-forced-pam.js"
+			file1l, // "_object-gopd.js"
+			file1m, // "_object-gopn.js"
+			file1n, // "_object-gops.js"
+			file1o, // "_object-gpo.js"
+			file1p, // "_object-keys-internal.js"
+			file1q, // "_object-keys.js"
+			file1r, // "_object-pie.js"
+			file1s, // "_object-to-array.js"
+			file1t, // "_own-keys.js"
+			file1u, // "_perform.js"
+			file1v, // "_promise-resolve.js"
+			file1w, // "_property-desc.js"
+			file1x, // "_redefine-all.js"
+			file1y, // "_redefine.js"
+			file1z, // "_set-collection-from.js"
+			file20, // "_set-collection-of.js"
+			file21, // "_set-proto.js"
+			file22, // "_set-species.js"
+			file23, // "_set-to-string-tag.js"
+			file24, // "_shared-key.js"
+			file25, // "_shared.js"
+			file26, // "_species-constructor.js"
+			file27, // "_string-at.js"
+			file28, // "_string-pad.js"
+			file29, // "_string-repeat.js"
+			file2a, // "_string-trim.js"
+			file2b, // "_string-ws.js"
+			file2c, // "_task.js"
+			file2d, // "_to-absolute-index.js"
+			file2e, // "_to-integer.js"
+			file2f, // "_to-iobject.js"
+			file2g, // "_to-length.js"
+			file2h, // "_to-object.js"
+			file2i, // "_to-primitive.js"
+			file2j, // "_uid.js"
+			file2k, // "_validate-collection.js"
+			file2l, // "_wks-define.js"
+			file2m, // "_wks-ext.js"
+			file2n, // "_wks.js"
+			file2o, // "core.get-iterator-method.js"
+			file2p, // "es6.map.js"
+			file2q, // "es6.promise.js"
+			file2r, // "es6.set.js"
+			file2s, // "es6.weak-map.js"
+			file2t, // "es7.array.flat-map.js"
+			file2u, // "es7.array.flatten.js"
+			file2v, // "es7.asap.js"
+			file2w, // "es7.error.is-error.js"
+			file2x, // "es7.global.js"
+			file2y, // "es7.map.from.js"
+			file2z, // "es7.map.of.js"
+			file30, // "es7.map.to-json.js"
+			file31, // "es7.object.define-getter.js"
+			file32, // "es7.object.define-setter.js"
+			file33, // "es7.object.entries.js"
+			file34, // "es7.object.get-own-property-descriptors.js"
+			file35, // "es7.object.lookup-getter.js"
+			file36, // "es7.object.lookup-setter.js"
+			file37, // "es7.object.values.js"
+			file38, // "es7.observable.js"
+			file39, // "es7.promise.finally.js"
+			file3a, // "es7.promise.try.js"
+			file3b, // "es7.reflect.define-metadata.js"
+			file3c, // "es7.reflect.delete-metadata.js"
+			file3d, // "es7.reflect.get-metadata-keys.js"
+			file3e, // "es7.reflect.get-metadata.js"
+			file3f, // "es7.reflect.get-own-metadata-keys.js"
+			file3g, // "es7.reflect.get-own-metadata.js"
+			file3h, // "es7.reflect.has-metadata.js"
+			file3i, // "es7.reflect.has-own-metadata.js"
+			file3j, // "es7.reflect.metadata.js"
+			file3k, // "es7.set.from.js"
+			file3l, // "es7.set.of.js"
+			file3m, // "es7.set.to-json.js"
+			file3n, // "es7.string.at.js"
+			file3o, // "es7.string.match-all.js"
+			file3p, // "es7.string.pad-end.js"
+			file3q, // "es7.string.pad-start.js"
+			file3r, // "es7.string.trim-left.js"
+			file3s, // "es7.string.trim-right.js"
+			file3t, // "es7.symbol.async-iterator.js"
+			file3u, // "es7.symbol.observable.js"
+			file3v, // "es7.system.global.js"
+			file3w, // "es7.weak-map.from.js"
+			file3x, // "es7.weak-map.of.js"
+			file3y, // "es7.weak-set.from.js"
+			file3z, // "es7.weak-set.of.js"
 
 		},
 	}
@@ -30,12 +1020,153 @@ func init() {
 	// register embeddedBox
 	embedded.RegisterEmbeddedBox(`core-js`, &embedded.EmbeddedBox{
 		Name: `core-js`,
-		Time: time.Unix(1527777843, 0),
+		Time: time.Unix(1605797780, 0),
 		Dirs: map[string]*embedded.EmbeddedDir{
 			"": dir1,
 		},
 		Files: map[string]*embedded.EmbeddedFile{
-			"shim.min.js": file2,
+			"_a-function.js":                             file2,
+			"_add-to-unscopables.js":                     file3,
+			"_an-instance.js":                            file4,
+			"_an-object.js":                              file5,
+			"_array-from-iterable.js":                    file6,
+			"_array-includes.js":                         file7,
+			"_array-methods.js":                          file8,
+			"_array-species-constructor.js":              file9,
+			"_array-species-create.js":                   filea,
+			"_classof.js":                                fileb,
+			"_cof.js":                                    filec,
+			"_collection-strong.js":                      filed,
+			"_collection-to-json.js":                     filee,
+			"_collection-weak.js":                        filef,
+			"_collection.js":                             fileg,
+			"_core.js":                                   fileh,
+			"_create-property.js":                        filei,
+			"_ctx.js":                                    filej,
+			"_defined.js":                                filek,
+			"_descriptors.js":                            filel,
+			"_dom-create.js":                             filem,
+			"_enum-bug-keys.js":                          filen,
+			"_export.js":                                 fileo,
+			"_fails.js":                                  filep,
+			"_flags.js":                                  fileq,
+			"_flatten-into-array.js":                     filer,
+			"_for-of.js":                                 files,
+			"_global.js":                                 filet,
+			"_has.js":                                    fileu,
+			"_hide.js":                                   filev,
+			"_html.js":                                   filew,
+			"_ie8-dom-define.js":                         filex,
+			"_inherit-if-required.js":                    filey,
+			"_invoke.js":                                 filez,
+			"_iobject.js":                                file10,
+			"_is-array-iter.js":                          file11,
+			"_is-array.js":                               file12,
+			"_is-object.js":                              file13,
+			"_is-regexp.js":                              file14,
+			"_iter-call.js":                              file15,
+			"_iter-create.js":                            file16,
+			"_iter-define.js":                            file17,
+			"_iter-detect.js":                            file18,
+			"_iter-step.js":                              file19,
+			"_iterators.js":                              file1a,
+			"_library.js":                                file1b,
+			"_meta.js":                                   file1c,
+			"_metadata.js":                               file1d,
+			"_microtask.js":                              file1e,
+			"_new-promise-capability.js":                 file1f,
+			"_object-assign.js":                          file1g,
+			"_object-create.js":                          file1h,
+			"_object-dp.js":                              file1i,
+			"_object-dps.js":                             file1j,
+			"_object-forced-pam.js":                      file1k,
+			"_object-gopd.js":                            file1l,
+			"_object-gopn.js":                            file1m,
+			"_object-gops.js":                            file1n,
+			"_object-gpo.js":                             file1o,
+			"_object-keys-internal.js":                   file1p,
+			"_object-keys.js":                            file1q,
+			"_object-pie.js":                             file1r,
+			"_object-to-array.js":                        file1s,
+			"_own-keys.js":                               file1t,
+			"_perform.js":                                file1u,
+			"_promise-resolve.js":                        file1v,
+			"_property-desc.js":                          file1w,
+			"_redefine-all.js":                           file1x,
+			"_redefine.js":                               file1y,
+			"_set-collection-from.js":                    file1z,
+			"_set-collection-of.js":                      file20,
+			"_set-proto.js":                              file21,
+			"_set-species.js":                            file22,
+			"_set-to-string-tag.js":                      file23,
+			"_shared-key.js":                             file24,
+			"_shared.js":                                 file25,
+			"_species-constructor.js":                    file26,
+			"_string-at.js":                              file27,
+			"_string-pad.js":                             file28,
+			"_string-repeat.js":                          file29,
+			"_string-trim.js":                            file2a,
+			"_string-ws.js":                              file2b,
+			"_task.js":                                   file2c,
+			"_to-absolute-index.js":                      file2d,
+			"_to-integer.js":                             file2e,
+			"_to-iobject.js":                             file2f,
+			"_to-length.js":                              file2g,
+			"_to-object.js":                              file2h,
+			"_to-primitive.js":                           file2i,
+			"_uid.js":                                    file2j,
+			"_validate-collection.js":                    file2k,
+			"_wks-define.js":                             file2l,
+			"_wks-ext.js":                                file2m,
+			"_wks.js":                                    file2n,
+			"core.get-iterator-method.js":                file2o,
+			"es6.map.js":                                 file2p,
+			"es6.promise.js":                             file2q,
+			"es6.set.js":                                 file2r,
+			"es6.weak-map.js":                            file2s,
+			"es7.array.flat-map.js":                      file2t,
+			"es7.array.flatten.js":                       file2u,
+			"es7.asap.js":                                file2v,
+			"es7.error.is-error.js":                      file2w,
+			"es7.global.js":                              file2x,
+			"es7.map.from.js":                            file2y,
+			"es7.map.of.js":                              file2z,
+			"es7.map.to-json.js":                         file30,
+			"es7.object.define-getter.js":                file31,
+			"es7.object.define-setter.js":                file32,
+			"es7.object.entries.js":                      file33,
+			"es7.object.get-own-property-descriptors.js": file34,
+			"es7.object.lookup-getter.js":                file35,
+			"es7.object.lookup-setter.js":                file36,
+			"es7.object.values.js":                       file37,
+			"es7.observable.js":                          file38,
+			"es7.promise.finally.js":                     file39,
+			"es7.promise.try.js":                         file3a,
+			"es7.reflect.define-metadata.js":             file3b,
+			"es7.reflect.delete-metadata.js":             file3c,
+			"es7.reflect.get-metadata-keys.js":           file3d,
+			"es7.reflect.get-metadata.js":                file3e,
+			"es7.reflect.get-own-metadata-keys.js":       file3f,
+			"es7.reflect.get-own-metadata.js":            file3g,
+			"es7.reflect.has-metadata.js":                file3h,
+			"es7.reflect.has-own-metadata.js":            file3i,
+			"es7.reflect.metadata.js":                    file3j,
+			"es7.set.from.js":                            file3k,
+			"es7.set.of.js":                              file3l,
+			"es7.set.to-json.js":                         file3m,
+			"es7.string.at.js":                           file3n,
+			"es7.string.match-all.js":                    file3o,
+			"es7.string.pad-end.js":                      file3p,
+			"es7.string.pad-start.js":                    file3q,
+			"es7.string.trim-left.js":                    file3r,
+			"es7.string.trim-right.js":                   file3s,
+			"es7.symbol.async-iterator.js":               file3t,
+			"es7.symbol.observable.js":                   file3u,
+			"es7.system.global.js":                       file3v,
+			"es7.weak-map.from.js":                       file3w,
+			"es7.weak-map.of.js":                         file3x,
+			"es7.weak-set.from.js":                       file3y,
+			"es7.weak-set.of.js":                         file3z,
 		},
 	})
 }