diff --git a/dist/vue-apollo.esm.js b/dist/vue-apollo.esm.js
index 8bb08e7a..f958cd70 100644
--- a/dist/vue-apollo.esm.js
+++ b/dist/vue-apollo.esm.js
@@ -2612,6 +2612,19 @@ var SmartApollo = function () {
     value: function nextResult() {
       throw new Error('Not implemented');
     }
+  }, {
+    key: 'errorHandler',
+    value: function errorHandler() {
+      var _options$error, _vm$$apollo$error, _vm$$apollo$provider$;
+
+      for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+        args[_key] = arguments[_key];
+      }
+
+      this.options.error && (_options$error = this.options.error).call.apply(_options$error, [this.vm].concat(args));
+      this.vm.$apollo.error && (_vm$$apollo$error = this.vm.$apollo.error).call.apply(_vm$$apollo$error, [this.vm].concat(args));
+      this.vm.$apollo.provider.errorHandler && (_vm$$apollo$provider$ = this.vm.$apollo.provider.errorHandler).call.apply(_vm$$apollo$provider$, [this.vm].concat(args));
+    }
   }, {
     key: 'catchError',
     value: function catchError(error) {
@@ -2654,9 +2667,7 @@ var SmartApollo = function () {
         }
       }
 
-      if (typeof this.options.error === 'function') {
-        this.options.error.call(this.vm, error);
-      }
+      this.errorHandler(error);
     }
   }, {
     key: 'destroy',
@@ -2807,16 +2818,28 @@ var SmartQuery = function (_SmartApollo) {
       get(SmartQuery.prototype.__proto__ || Object.getPrototypeOf(SmartQuery.prototype), 'catchError', this).call(this, error);
       this.loadingDone();
     }
+  }, {
+    key: 'watchLoading',
+    value: function watchLoading() {
+      var _options$watchLoading, _vm$$apollo$watchLoad, _vm$$apollo$provider$2;
+
+      for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+        args[_key2] = arguments[_key2];
+      }
+
+      this.options.watchLoading && (_options$watchLoading = this.options.watchLoading).call.apply(_options$watchLoading, [this.vm].concat(args));
+      this.vm.$apollo.watchLoading && (_vm$$apollo$watchLoad = this.vm.$apollo.watchLoading).call.apply(_vm$$apollo$watchLoad, [this.vm].concat(args));
+      this.vm.$apollo.provider.watchLoading && (_vm$$apollo$provider$2 = this.vm.$apollo.provider.watchLoading).call.apply(_vm$$apollo$provider$2, [this.vm].concat(args));
+    }
   }, {
     key: 'applyLoadingModifier',
     value: function applyLoadingModifier(value) {
-      if (this.options.loadingKey) {
-        this.vm[this.options.loadingKey] += value;
+      var loadingKey = this.loadingKey;
+      if (loadingKey && typeof this.vm[loadingKey] === 'number') {
+        this.vm[loadingKey] += value;
       }
 
-      if (this.options.watchLoading) {
-        this.options.watchLoading.call(this.vm, value === 1, value);
-      }
+      this.watchLoading(value === 1, value);
     }
   }, {
     key: 'loadingDone',
@@ -2909,6 +2932,11 @@ var SmartQuery = function (_SmartApollo) {
         return (_observer4 = this.observer).stopPolling.apply(_observer4, arguments);
       }
     }
+  }, {
+    key: 'loadingKey',
+    get: function get$$1() {
+      return this.options.loadingKey || this.vm.$apollo.loadingKey;
+    }
   }]);
   return SmartQuery;
 }(SmartApollo);
@@ -2923,8 +2951,8 @@ var SmartSubscription = function (_SmartApollo2) {
 
     classCallCheck(this, SmartSubscription);
 
-    for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
-      args[_key] = arguments[_key];
+    for (var _len3 = arguments.length, args = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+      args[_key3] = arguments[_key3];
     }
 
     return _ret = (_temp = (_this6 = possibleConstructorReturn(this, (_ref = SmartSubscription.__proto__ || Object.getPrototypeOf(SmartSubscription)).call.apply(_ref, [this].concat(args))), _this6), _this6.type = 'subscription', _this6.vueApolloSpecialKeys = ['variables', 'result', 'error', 'throttle', 'debounce', 'linkedQuery'], _temp), possibleConstructorReturn(_this6, _ret);
@@ -2976,6 +3004,8 @@ var DollarApollo = function () {
     this.queries = {};
     this.subscriptions = {};
     this.client = undefined;
+    this.loadingKey = undefined;
+    this.error = undefined;
   }
 
   createClass(DollarApollo, [{
@@ -3168,6 +3198,9 @@ var ApolloProvider$1 = function () {
     }
     this.clients = options.clients || {};
     this.clients.defaultClient = this.defaultClient = options.defaultClient;
+    this.defaultOptions = options.defaultOptions;
+    this.watchLoading = options.watchLoading;
+    this.errorHandler = options.errorHandler;
 
     this.prefetchQueries = [];
   }
@@ -3286,16 +3319,19 @@ var ApolloProvider$1 = function () {
             result = prefetch;
           }
 
-          var optVariables = queryOptions.variables;
-
           if (!result) {
             return Promise.resolve();
-          } else if (prefetchType === 'boolean' && typeof optVariables !== 'undefined') {
-            // Reuse `variables` option with `prefetch: true`
-            if (typeof optVariables === 'function') {
-              variables = optVariables.call(context);
+          } else if (prefetchType === 'boolean') {
+            var optVariables = queryOptions.variables;
+            if (typeof optVariables !== 'undefined') {
+              // Reuse `variables` option with `prefetch: true`
+              if (typeof optVariables === 'function') {
+                variables = optVariables.call(context);
+              } else {
+                variables = optVariables;
+              }
             } else {
-              variables = optVariables;
+              variables = undefined;
             }
           } else {
             variables = result;
@@ -3351,8 +3387,11 @@ function willPrefetch(component) {
 var keywords = ['$subscribe'];
 
 var prepare = function prepare() {
+  var apolloProvider = void 0;
   if (this.$options.apolloProvider) {
-    this._apolloProvider = this.$options.apolloProvider;
+    apolloProvider = this._apolloProvider = this.$options.apolloProvider;
+  } else {
+    apolloProvider = this.$root._apolloProvider;
   }
 
   if (this._apolloPrepared) return;
@@ -3360,9 +3399,20 @@ var prepare = function prepare() {
 
   // Prepare properties
   var apollo = this.$options.apollo;
+
   if (apollo) {
     this._apolloQueries = {};
     this._apolloInitData = {};
+    this.$apollo = new DollarApollo(this);
+
+    if (!apollo.$init) {
+      apollo.$init = true;
+
+      // Default options applied to `apollo` options
+      if (apolloProvider.defaultOptions) {
+        apollo = this.$options.apollo = Object.assign({}, apolloProvider.defaultOptions, apollo);
+      }
+    }
 
     // watchQuery
     for (var key in apollo) {
@@ -3378,6 +3428,16 @@ var launch = function launch() {
   if (this._apolloLaunched) return;
   this._apolloLaunched = true;
 
+  var apollo = this.$options.apollo;
+  if (apollo) {
+    defineReactiveSetter(this.$apollo, 'skipAll', apollo.$skipAll);
+    defineReactiveSetter(this.$apollo, 'skipAllQueries', apollo.$skipAllQueries);
+    defineReactiveSetter(this.$apollo, 'skipAllSubscriptions', apollo.$skipAllSubscriptions);
+    defineReactiveSetter(this.$apollo, 'client', apollo.$client);
+    defineReactiveSetter(this.$apollo, 'loadingKey', apollo.$loadingKey);
+    defineReactiveSetter(this.$apollo, 'error', apollo.$error);
+  }
+
   if (this._apolloQueries) {
     // watchQuery
     for (var key in this._apolloQueries) {
@@ -3385,7 +3445,6 @@ var launch = function launch() {
     }
   }
 
-  var apollo = this.$options.apollo;
   if (apollo) {
     if (apollo.subscribe) {
       Globals.Vue.util.warn('vue-apollo -> `subscribe` option is deprecated. Use the `$subscribe` option instead.');
@@ -3396,11 +3455,6 @@ var launch = function launch() {
         this.$apollo.addSmartSubscription(_key, apollo.$subscribe[_key]);
       }
     }
-
-    defineReactiveSetter(this.$apollo, 'skipAll', apollo.$skipAll);
-    defineReactiveSetter(this.$apollo, 'skipAllQueries', apollo.$skipAllQueries);
-    defineReactiveSetter(this.$apollo, 'skipAllSubscriptions', apollo.$skipAllSubscriptions);
-    defineReactiveSetter(this.$apollo, 'client', apollo.$client);
   }
 };
 
@@ -3438,16 +3492,6 @@ function install(Vue, options) {
     return Object.assign(map, merge(toData, fromData));
   };
 
-  // Lazy creation
-  Object.defineProperty(Vue.prototype, '$apollo', {
-    get: function get() {
-      if (!this._apollo) {
-        this._apollo = new DollarApollo(this);
-      }
-      return this._apollo;
-    }
-  });
-
   Vue.mixin({
 
     // Vue 1.x
diff --git a/dist/vue-apollo.min.js b/dist/vue-apollo.min.js
index f2917f38..6c9efde6 100644
--- a/dist/vue-apollo.min.js
+++ b/dist/vue-apollo.min.js
@@ -1 +1 @@
-!function(t){"use strict";function e(t,e,r){switch(r.length){case 0:return t.call(e);case 1:return t.call(e,r[0]);case 2:return t.call(e,r[0],r[1]);case 3:return t.call(e,r[0],r[1],r[2])}return t.apply(e,r)}function r(t,e){var r=t?t.length:0;return!!r&&u(t,e,0)>-1}function i(t,e,r){for(var i=-1,n=t?t.length:0;++i<n;)if(r(e,t[i]))return!0;return!1}function n(t,e){for(var r=-1,i=t?t.length:0,n=Array(i);++r<i;)n[r]=e(t[r],r,t);return n}function o(t,e){for(var r=-1,i=e.length,n=t.length;++r<i;)t[n+r]=e[r];return t}function s(t,e,r,i){for(var n=t.length,o=r+(i?1:-1);i?o--:++o<n;)if(e(t[o],o,t))return o;return-1}function u(t,e,r){if(e!==e)return s(t,a,r);for(var i=r-1,n=t.length;++i<n;)if(t[i]===e)return i;return-1}function a(t){return t!==t}function l(t,e){for(var r=-1,i=Array(t);++r<t;)i[r]=e(r);return i}function c(t){return function(e){return t(e)}}function f(t,e){return t.has(e)}function h(t,e){return null==t?void 0:t[e]}function p(t){var e=!1;if(null!=t&&"function"!=typeof 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n.ssr||n.ssr)&&"undefined"!=typeof n.prefetch&&n.prefetch)&&this.willPrefetchQuery(n,n.client||r)}}}},{key:"willPrefetchComponents",value:function(t){var e=!0,r=!1,i=void 0;try{for(var n,o=t[Symbol.iterator]();!(e=(n=o.next()).done);e=!0){var s=n.value;this.willPrefetch(s)}}catch(t){r=!0,i=t}finally{try{!e&&o.return&&o.return()}finally{if(r)throw i}}}},{key:"prefetchAll",value:function(t,e,r){var i=this;r||!e||Array.isArray(e)||(r=e,e=void 0);var n=Object.assign({},{includeGlobal:!0},r);return e&&this.willPrefetchComponents(e),n.includeGlobal&&this.willPrefetchComponents(pr),Promise.all(this.prefetchQueries.map(function(e){return i.prefetchQuery(e.queryOptions,t,e.client)}))}},{key:"prefetchQuery",value:function(t,e,r){var i=void 0;if(r){if("string"==typeof r&&(r=this.clients[r],!r))throw new Error("[vue-apollo] Missing client '"+r+"' in 'apolloProvider'")}else r=this.defaultClient;if(t.query){var n=t.prefetch,o="undefined"==typeof n?"undefined":Ze(n);if("undefined"!==o){var s=void 0;s="function"===o?n(e):n;var u=t.variables;if(!s)return Promise.resolve();i="boolean"===o&&"undefined"!=typeof u?"function"==typeof u?u.call(e):u:s}}else t={query:t};return new Promise(function(e,n){var o=ve(t,Ye);o.variables=i,r.query(o).then(e,n)})}},{key:"getStates",value:function(t){var e=Object.assign({},{exportNamespace:""},t),r={};for(var i in this.clients){var n=this.clients[i],o=rr({},n.reduxRootKey||"apollo",n.getInitialState());r[""+e.exportNamespace+i]=o}return r}},{key:"exportStates",value:function(t){var e=Object.assign({},{globalName:"__APOLLO_STATE__",attachTo:"window"},t),r=this.getStates({exportNamespace:e.exportNamespace}),i=e.attachTo+"."+e.globalName+" = "+JSON.stringify(r)+";";return i}}]),t}(),pr=[],vr=["$subscribe"],yr=function(){if(this.$options.apolloProvider&&(this._apolloProvider=this.$options.apolloProvider),!this._apolloPrepared){this._apolloPrepared=!0;var t=this.$options.apollo;if(t){this._apolloQueries={},this._apolloInitData={};for(var e in t)"$"!==e.charAt(0)&&(this._apolloInitData[e]=null,this._apolloQueries[e]=t[e])}}},br=function(){if(!this._apolloLaunched){if(this._apolloLaunched=!0,this._apolloQueries)for(var t in this._apolloQueries)this.$apollo.addSmartQuery(t,this._apolloQueries[t]);var e=this.$options.apollo;if(e){if(e.subscribe&&Be.Vue.util.warn("vue-apollo -> `subscribe` option is deprecated. 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or(e,t),er(e,[{key:"stop",value:function(){nr(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"stop",this).call(this),this.observer&&(this.observer.stopPolling(),this.observer=null)}},{key:"executeApollo",value:function(t){this.observer?this.observer.setOptions(this.generateApolloOptions(t)):(this.sub&&this.sub.unsubscribe(),this.observer=this.vm.$apollo.watchQuery(this.generateApolloOptions(t)),this.sub=this.observer.subscribe({next:this.nextResult.bind(this),error:this.catchError.bind(this)})),this.maySetLoading(),nr(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"executeApollo",this).call(this,t)}},{key:"maySetLoading",value:function(){var t=arguments.length>0&&void 0!==arguments[0]&&arguments[0],e=this.observer.currentResult();(t||e.loading)&&(this.loading||this.applyLoadingModifier(1),this.loading=!0)}},{key:"nextResult",value:function(t){var e=t.data,r=t.loading;r||this.loadingDone(),"undefined"==typeof e||("function"==typeof this.options.update?this.vm[this.key]=this.options.update.call(this.vm,e):void 0===e[this.key]?console.error("Missing "+this.key+" attribute on result",e):this.vm[this.key]=e[this.key]),"function"==typeof this.options.result&&this.options.result.call(this.vm,t)}},{key:"catchError",value:function(t){nr(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"catchError",this).call(this,t),this.loadingDone()}},{key:"watchLoading",value:function(){for(var t,e,r,i=arguments.length,n=Array(i),o=0;o<i;o++)n[o]=arguments[o];this.options.watchLoading&&(t=this.options.watchLoading).call.apply(t,[this.vm].concat(n)),this.vm.$apollo.watchLoading&&(e=this.vm.$apollo.watchLoading).call.apply(e,[this.vm].concat(n)),this.vm.$apollo.provider.watchLoading&&(r=this.vm.$apollo.provider.watchLoading).call.apply(r,[this.vm].concat(n))}},{key:"applyLoadingModifier",value:function(t){var e=this.loadingKey;e&&"number"==typeof this.vm[e]&&(this.vm[e]+=t),this.watchLoading(1===t,t)}},{key:"loadingDone",value:function(){this.loading&&this.applyLoadingModifier(-1),this.loading=!1}},{key:"fetchMore",value:function(){var t=this;if(this.observer){var e;return this.maySetLoading(!0),(e=this.observer).fetchMore.apply(e,arguments).then(function(e){return e.loading||t.loadingDone(),e})}}},{key:"subscribeToMore",value:function(){if(this.observer){var t;return{unsubscribe:(t=this.observer).subscribeToMore.apply(t,arguments)}}}},{key:"refetch",value:function(t){var e=this;if(t&&(this.options.variables=t),this.observer){var r=this.observer.refetch(t).then(function(t){return t.loading||e.loadingDone(),t});return this.maySetLoading(),r}}},{key:"setVariables",value:function(t,e){if(this.options.variables=t,this.observer){var r=this.observer.setVariables(t,e);return this.maySetLoading(),r}}},{key:"setOptions",value:function(t){if(Object.assign(this.options,t),this.observer){var e=this.observer.setOptions(t);return this.maySetLoading(),e}}},{key:"startPolling",value:function(){if(this.observer){var t;return(t=this.observer).startPolling.apply(t,arguments)}}},{key:"stopPolling",value:function(){if(this.observer){var t;return(t=this.observer).stopPolling.apply(t,arguments)}}},{key:"loadingKey",get:function(){return this.options.loadingKey||this.vm.$apollo.loadingKey}}]),e}(ur),cr=function(t){function e(){var t,r,i,n;tr(this,e);for(var o=arguments.length,s=Array(o),a=0;a<o;a++)s[a]=arguments[a];return r=i=sr(this,(t=e.__proto__||Object.getPrototypeOf(e)).call.apply(t,[this].concat(s))),i.type="subscription",i.vueApolloSpecialKeys=["variables","result","error","throttle","debounce","linkedQuery"],n=r,sr(i,n)}return or(e,t),er(e,[{key:"executeApollo",value:function(t){this.sub&&this.sub.unsubscribe();var r=this.generateApolloOptions(t);this.options.linkedQuery?this.sub=this.options.linkedQuery.subscribeToMore(r):(this.observer=this.vm.$apollo.subscribe(r),this.sub=this.observer.subscribe({next:this.nextResult.bind(this),error:this.catchError.bind(this)})),nr(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"executeApollo",this).call(this,t)}},{key:"nextResult",value:function(t){"function"==typeof this.options.result&&this.options.result.call(this.vm,t)}}]),e}(ur),fr=function(){function t(e){tr(this,t),this._apolloSubscriptions=[],this._watchers=[],this.vm=e,this.queries={},this.subscriptions={},this.client=void 0,this.loadingKey=void 0,this.error=void 0}return er(t,[{key:"query",value:function(t){return this.getClient(t).query(t)}},{key:"getClient",value:function(t){if(!t||!t.client){if("object"===Ze(this.client))return this.client;if(this.client){if(this.provider.clients){var e=this.provider.clients[this.client];if(!e)throw new Error("[vue-apollo] Missing client '"+this.client+"' in 'apolloProvider'");return e}throw new Error("[vue-apollo] Missing 'clients' options in 'apolloProvider'")}return this.provider.defaultClient}var r=this.provider.clients[t.client];if(!r)throw new Error("[vue-apollo] Missing client '"+t.client+"' in 'apolloProvider'");return r}},{key:"watchQuery",value:function(t){var e=this,r=this.getClient(t).watchQuery(t),i=r.subscribe.bind(r);return r.subscribe=function(t){var r=i(t);return e._apolloSubscriptions.push(r),r},r}},{key:"mutate",value:function(t){return this.getClient(t).mutate(t)}},{key:"subscribe",value:function(t){var e=this,r=this.getClient(t).subscribe(t),i=r.subscribe.bind(r);return r.subscribe=function(t){var r=i(t);return e._apolloSubscriptions.push(r),r},r}},{key:"addSmartQuery",value:function(t,e){var r=this;e=At(e,this.vm);var i=this.queries[t]=new lr(this.vm,t,e,!1);i.autostart();var n=e.subscribeToMore;return n&&(Array.isArray(n)?n.forEach(function(e,n){r.addSmartSubscription(""+t+n,ir({},e,{linkedQuery:i}))}):this.addSmartSubscription(t,ir({},n,{linkedQuery:i}))),i}},{key:"addSmartSubscription",value:function(t,e){e=At(e,this.vm);var r=this.subscriptions[t]=new cr(this.vm,t,e,!1);return r.autostart(),r}},{key:"defineReactiveSetter",value:function(t,e){var r=this;this._watchers.push(this.vm.$watch(e,function(e){r[t]=e},{immediate:!0}))}},{key:"destroy",value:function(){var t=!0,e=!1,r=void 0;try{for(var i,n=this._watchers[Symbol.iterator]();!(t=(i=n.next()).done);t=!0){var o=i.value;o()}}catch(t){e=!0,r=t}finally{try{!t&&n.return&&n.return()}finally{if(e)throw r}}for(var s in this.queries)this.queries[s].destroy();for(var a in this.subscriptions)this.subscriptions[a].destroy();this._apolloSubscriptions.forEach(function(t){t.unsubscribe()}),this._apolloSubscriptions=null,this.vm=null}},{key:"provider",get:function(){return this._apolloProvider||this.vm.$root._apolloProvider}},{key:"skipAllQueries",set:function(t){for(var e in this.queries)this.queries[e].skip=t}},{key:"skipAllSubscriptions",set:function(t){for(var e in this.subscriptions)this.subscriptions[e].skip=t}},{key:"skipAll",set:function(t){this.skipAllQueries=t,this.skipAllSubscriptions=t}}]),t}(),hr=function(){function t(e){if(tr(this,t),!e)throw new Error("Options argument required");this.clients=e.clients||{},this.clients.defaultClient=this.defaultClient=e.defaultClient,this.defaultOptions=e.defaultOptions,this.watchLoading=e.watchLoading,this.errorHandler=e.errorHandler,this.prefetchQueries=[]}return er(t,[{key:"willPrefetchQuery",value:function(t,e){this.prefetchQueries.push({queryOptions:t,client:e})}},{key:"willPrefetch",value:function(t){t=$t(t);var e=t.apollo;if(e){var r=e.$client;for(var i in e){var n=e[i];(!n.query||("undefined"==typeof n.ssr||n.ssr)&&"undefined"!=typeof n.prefetch&&n.prefetch)&&this.willPrefetchQuery(n,n.client||r)}}}},{key:"willPrefetchComponents",value:function(t){var e=!0,r=!1,i=void 0;try{for(var n,o=t[Symbol.iterator]();!(e=(n=o.next()).done);e=!0){var s=n.value;this.willPrefetch(s)}}catch(t){r=!0,i=t}finally{try{!e&&o.return&&o.return()}finally{if(r)throw i}}}},{key:"prefetchAll",value:function(t,e,r){var i=this;r||!e||Array.isArray(e)||(r=e,e=void 0);var n=Object.assign({},{includeGlobal:!0},r);return e&&this.willPrefetchComponents(e),n.includeGlobal&&this.willPrefetchComponents(pr),Promise.all(this.prefetchQueries.map(function(e){return i.prefetchQuery(e.queryOptions,t,e.client)}))}},{key:"prefetchQuery",value:function(t,e,r){var i=void 0;if(r){if("string"==typeof r&&(r=this.clients[r],!r))throw new Error("[vue-apollo] Missing client '"+r+"' in 'apolloProvider'")}else r=this.defaultClient;if(t.query){var n=t.prefetch,o="undefined"==typeof n?"undefined":Ze(n);if("undefined"!==o){var s=void 0;if(s="function"===o?n(e):n,!s)return Promise.resolve();if("boolean"===o){var a=t.variables;i="undefined"!=typeof a?"function"==typeof a?a.call(e):a:void 0}else i=s}}else t={query:t};return new Promise(function(e,n){var o=ve(t,Ye);o.variables=i,r.query(o).then(e,n)})}},{key:"getStates",value:function(t){var e=Object.assign({},{exportNamespace:""},t),r={};for(var i in this.clients){var n=this.clients[i],o=rr({},n.reduxRootKey||"apollo",n.getInitialState());r[""+e.exportNamespace+i]=o}return r}},{key:"exportStates",value:function(t){var e=Object.assign({},{globalName:"__APOLLO_STATE__",attachTo:"window"},t),r=this.getStates({exportNamespace:e.exportNamespace}),i=e.attachTo+"."+e.globalName+" = "+JSON.stringify(r)+";";return i}}]),t}(),pr=[],vr=["$subscribe"],yr=function(){var t=void 0;if(t=this.$options.apolloProvider?this._apolloProvider=this.$options.apolloProvider:this.$root._apolloProvider,!this._apolloPrepared){this._apolloPrepared=!0;var e=this.$options.apollo;if(e){this._apolloQueries={},this._apolloInitData={},this.$apollo=new fr(this),e.$init||(e.$init=!0,t.defaultOptions&&(e=this.$options.apollo=Object.assign({},t.defaultOptions,e)));for(var r in e)"$"!==r.charAt(0)&&(this._apolloInitData[r]=null,this._apolloQueries[r]=e[r])}}},dr=function(){if(!this._apolloLaunched){this._apolloLaunched=!0;var t=this.$options.apollo;if(t&&(xt(this.$apollo,"skipAll",t.$skipAll),xt(this.$apollo,"skipAllQueries",t.$skipAllQueries),xt(this.$apollo,"skipAllSubscriptions",t.$skipAllSubscriptions),xt(this.$apollo,"client",t.$client),xt(this.$apollo,"loadingKey",t.$loadingKey),xt(this.$apollo,"error",t.$error)),this._apolloQueries)for(var e in this._apolloQueries)this.$apollo.addSmartQuery(e,this._apolloQueries[e]);if(t&&(t.subscribe&&ze.Vue.util.warn("vue-apollo -> `subscribe` option is deprecated. Use the `$subscribe` option instead."),t.$subscribe))for(var r in t.$subscribe)this.$apollo.addSmartSubscription(r,t.$subscribe[r])}};hr.install=Et;var br=hr,gr=null;"undefined"!=typeof window?gr=window.Vue:"undefined"!=typeof global&&(gr=global.Vue),gr&&gr.use(hr),t.install=Et,t.ApolloProvider=br,t.default=hr,t.willPrefetch=Pt}(this.VueApollo=this.VueApollo||{});
diff --git a/dist/vue-apollo.umd.js b/dist/vue-apollo.umd.js
index be5a6671..4e8e9533 100644
--- a/dist/vue-apollo.umd.js
+++ b/dist/vue-apollo.umd.js
@@ -2618,6 +2618,19 @@ var SmartApollo = function () {
     value: function nextResult() {
       throw new Error('Not implemented');
     }
+  }, {
+    key: 'errorHandler',
+    value: function errorHandler() {
+      var _options$error, _vm$$apollo$error, _vm$$apollo$provider$;
+
+      for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+        args[_key] = arguments[_key];
+      }
+
+      this.options.error && (_options$error = this.options.error).call.apply(_options$error, [this.vm].concat(args));
+      this.vm.$apollo.error && (_vm$$apollo$error = this.vm.$apollo.error).call.apply(_vm$$apollo$error, [this.vm].concat(args));
+      this.vm.$apollo.provider.errorHandler && (_vm$$apollo$provider$ = this.vm.$apollo.provider.errorHandler).call.apply(_vm$$apollo$provider$, [this.vm].concat(args));
+    }
   }, {
     key: 'catchError',
     value: function catchError(error) {
@@ -2660,9 +2673,7 @@ var SmartApollo = function () {
         }
       }
 
-      if (typeof this.options.error === 'function') {
-        this.options.error.call(this.vm, error);
-      }
+      this.errorHandler(error);
     }
   }, {
     key: 'destroy',
@@ -2813,16 +2824,28 @@ var SmartQuery = function (_SmartApollo) {
       get(SmartQuery.prototype.__proto__ || Object.getPrototypeOf(SmartQuery.prototype), 'catchError', this).call(this, error);
       this.loadingDone();
     }
+  }, {
+    key: 'watchLoading',
+    value: function watchLoading() {
+      var _options$watchLoading, _vm$$apollo$watchLoad, _vm$$apollo$provider$2;
+
+      for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+        args[_key2] = arguments[_key2];
+      }
+
+      this.options.watchLoading && (_options$watchLoading = this.options.watchLoading).call.apply(_options$watchLoading, [this.vm].concat(args));
+      this.vm.$apollo.watchLoading && (_vm$$apollo$watchLoad = this.vm.$apollo.watchLoading).call.apply(_vm$$apollo$watchLoad, [this.vm].concat(args));
+      this.vm.$apollo.provider.watchLoading && (_vm$$apollo$provider$2 = this.vm.$apollo.provider.watchLoading).call.apply(_vm$$apollo$provider$2, [this.vm].concat(args));
+    }
   }, {
     key: 'applyLoadingModifier',
     value: function applyLoadingModifier(value) {
-      if (this.options.loadingKey) {
-        this.vm[this.options.loadingKey] += value;
+      var loadingKey = this.loadingKey;
+      if (loadingKey && typeof this.vm[loadingKey] === 'number') {
+        this.vm[loadingKey] += value;
       }
 
-      if (this.options.watchLoading) {
-        this.options.watchLoading.call(this.vm, value === 1, value);
-      }
+      this.watchLoading(value === 1, value);
     }
   }, {
     key: 'loadingDone',
@@ -2915,6 +2938,11 @@ var SmartQuery = function (_SmartApollo) {
         return (_observer4 = this.observer).stopPolling.apply(_observer4, arguments);
       }
     }
+  }, {
+    key: 'loadingKey',
+    get: function get$$1() {
+      return this.options.loadingKey || this.vm.$apollo.loadingKey;
+    }
   }]);
   return SmartQuery;
 }(SmartApollo);
@@ -2929,8 +2957,8 @@ var SmartSubscription = function (_SmartApollo2) {
 
     classCallCheck(this, SmartSubscription);
 
-    for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
-      args[_key] = arguments[_key];
+    for (var _len3 = arguments.length, args = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+      args[_key3] = arguments[_key3];
     }
 
     return _ret = (_temp = (_this6 = possibleConstructorReturn(this, (_ref = SmartSubscription.__proto__ || Object.getPrototypeOf(SmartSubscription)).call.apply(_ref, [this].concat(args))), _this6), _this6.type = 'subscription', _this6.vueApolloSpecialKeys = ['variables', 'result', 'error', 'throttle', 'debounce', 'linkedQuery'], _temp), possibleConstructorReturn(_this6, _ret);
@@ -2982,6 +3010,8 @@ var DollarApollo = function () {
     this.queries = {};
     this.subscriptions = {};
     this.client = undefined;
+    this.loadingKey = undefined;
+    this.error = undefined;
   }
 
   createClass(DollarApollo, [{
@@ -3174,6 +3204,9 @@ var ApolloProvider$1 = function () {
     }
     this.clients = options.clients || {};
     this.clients.defaultClient = this.defaultClient = options.defaultClient;
+    this.defaultOptions = options.defaultOptions;
+    this.watchLoading = options.watchLoading;
+    this.errorHandler = options.errorHandler;
 
     this.prefetchQueries = [];
   }
@@ -3292,16 +3325,19 @@ var ApolloProvider$1 = function () {
             result = prefetch;
           }
 
-          var optVariables = queryOptions.variables;
-
           if (!result) {
             return Promise.resolve();
-          } else if (prefetchType === 'boolean' && typeof optVariables !== 'undefined') {
-            // Reuse `variables` option with `prefetch: true`
-            if (typeof optVariables === 'function') {
-              variables = optVariables.call(context);
+          } else if (prefetchType === 'boolean') {
+            var optVariables = queryOptions.variables;
+            if (typeof optVariables !== 'undefined') {
+              // Reuse `variables` option with `prefetch: true`
+              if (typeof optVariables === 'function') {
+                variables = optVariables.call(context);
+              } else {
+                variables = optVariables;
+              }
             } else {
-              variables = optVariables;
+              variables = undefined;
             }
           } else {
             variables = result;
@@ -3357,8 +3393,11 @@ function willPrefetch(component) {
 var keywords = ['$subscribe'];
 
 var prepare = function prepare() {
+  var apolloProvider = void 0;
   if (this.$options.apolloProvider) {
-    this._apolloProvider = this.$options.apolloProvider;
+    apolloProvider = this._apolloProvider = this.$options.apolloProvider;
+  } else {
+    apolloProvider = this.$root._apolloProvider;
   }
 
   if (this._apolloPrepared) return;
@@ -3366,9 +3405,20 @@ var prepare = function prepare() {
 
   // Prepare properties
   var apollo = this.$options.apollo;
+
   if (apollo) {
     this._apolloQueries = {};
     this._apolloInitData = {};
+    this.$apollo = new DollarApollo(this);
+
+    if (!apollo.$init) {
+      apollo.$init = true;
+
+      // Default options applied to `apollo` options
+      if (apolloProvider.defaultOptions) {
+        apollo = this.$options.apollo = Object.assign({}, apolloProvider.defaultOptions, apollo);
+      }
+    }
 
     // watchQuery
     for (var key in apollo) {
@@ -3384,6 +3434,16 @@ var launch = function launch() {
   if (this._apolloLaunched) return;
   this._apolloLaunched = true;
 
+  var apollo = this.$options.apollo;
+  if (apollo) {
+    defineReactiveSetter(this.$apollo, 'skipAll', apollo.$skipAll);
+    defineReactiveSetter(this.$apollo, 'skipAllQueries', apollo.$skipAllQueries);
+    defineReactiveSetter(this.$apollo, 'skipAllSubscriptions', apollo.$skipAllSubscriptions);
+    defineReactiveSetter(this.$apollo, 'client', apollo.$client);
+    defineReactiveSetter(this.$apollo, 'loadingKey', apollo.$loadingKey);
+    defineReactiveSetter(this.$apollo, 'error', apollo.$error);
+  }
+
   if (this._apolloQueries) {
     // watchQuery
     for (var key in this._apolloQueries) {
@@ -3391,7 +3451,6 @@ var launch = function launch() {
     }
   }
 
-  var apollo = this.$options.apollo;
   if (apollo) {
     if (apollo.subscribe) {
       Globals.Vue.util.warn('vue-apollo -> `subscribe` option is deprecated. Use the `$subscribe` option instead.');
@@ -3402,11 +3461,6 @@ var launch = function launch() {
         this.$apollo.addSmartSubscription(_key, apollo.$subscribe[_key]);
       }
     }
-
-    defineReactiveSetter(this.$apollo, 'skipAll', apollo.$skipAll);
-    defineReactiveSetter(this.$apollo, 'skipAllQueries', apollo.$skipAllQueries);
-    defineReactiveSetter(this.$apollo, 'skipAllSubscriptions', apollo.$skipAllSubscriptions);
-    defineReactiveSetter(this.$apollo, 'client', apollo.$client);
   }
 };
 
@@ -3444,16 +3498,6 @@ function install(Vue, options) {
     return Object.assign(map, merge(toData, fromData));
   };
 
-  // Lazy creation
-  Object.defineProperty(Vue.prototype, '$apollo', {
-    get: function get() {
-      if (!this._apollo) {
-        this._apollo = new DollarApollo(this);
-      }
-      return this._apollo;
-    }
-  });
-
   Vue.mixin({
 
     // Vue 1.x
diff --git a/package.json b/package.json
index 8c140e05..0fe875f6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-apollo",
-  "version": "2.1.0-beta.23",
+  "version": "2.1.0-rc.1",
   "description": "Vue apollo integration",
   "main": "dist/vue-apollo.umd.js",
   "module": "dist/vue-apollo.esm.js",