fix($location): parse query string when path is empty in hashbang mode

src/ng/location.js

@@ -178,6 +178,11 @@ function LocationHashbangUrl(appBase, hashPrefix) {
       throw $locationMinErr('ihshprfx', 'Invalid url "{0}", missing hash prefix "{1}".', url,
           hashPrefix);
     }
+
+    if (withoutHashUrl === '' && withoutBaseUrl.charAt(0) === '?') {
+      withoutHashUrl = withoutBaseUrl;
+    }
+
     parseAppUrl(withoutHashUrl, this, appBase);
 
     this.$$path = removeWindowsDriveName(this.$$path, withoutHashUrl, appBase);
@@ -228,10 +233,14 @@ function LocationHashbangUrl(appBase, hashPrefix) {
    */
   this.$$compose = function() {
     var search = toKeyValue(this.$$search),
-        hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';
+        hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '',
+        url = '';
 
     this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;
-    this.$$absUrl = appBase + (this.$$url ? hashPrefix + this.$$url : '');
+    if (this.$$url) {
+      url = this.$$path ? hashPrefix + this.$$url : this.$$url;
+    }
+    this.$$absUrl = appBase + url;
   };
 
   this.$$rewrite = function(url) {

test/ng/locationSpec.js

@@ -1487,6 +1487,30 @@ describe('$location', function() {
       expect(location.url()).toBe('/not-starting-with-slash');
       expect(location.absUrl()).toBe('http://server/pre/index.html#/not-starting-with-slash');
     });
+
+    describe("search()", function() {
+      it("should return a populated search object for search query when path is empty", function() {
+        location = new LocationHashbangUrl('http://server/pre/index.html', '!');
+
+        location.$$parse('http://server/pre/?foo=1&bar=2&baz=3');
+        expect(location.path()).toBe('');
+        expect(location.absUrl()).toBe('http://server/pre/index.html?foo=1&bar=2&baz=3')
+        expect(location.search()).toEqual({
+          foo: '1',
+          bar: '2',
+          baz: '3'
+        });
+
+        location.$$parse('http://server/pre/index.html?foo=1&bar=2&baz=3');
+        expect(location.path()).toBe('');
+        expect(location.absUrl()).toBe('http://server/pre/index.html?foo=1&bar=2&baz=3')
+        expect(location.search()).toEqual({
+          foo: '1',
+          bar: '2',
+          baz: '3'
+        });
+      });
+    });
   });