fix($rootScope): remove history event handler when app is torn down

src/ng/browser.js

@@ -293,6 +293,16 @@ function Browser(window, document, $log, $sniffer) {
     return callback;
   };
 
+  /**
+   * @private
+   * Remove popstate and hashchange handler from window.
+   *
+   * NOTE: this api is intended for use only by $rootScope.
+   */
+  self.$$applicationDestroyed = function() {
+    jqLite(window).off('hashchange popstate', cacheStateAndFireUrlChange);
+  };
+
   /**
    * Checks whether the url has changed outside of Angular.
    * Needs to be exported to be able to check for changes that have been done in sync,

src/ng/rootScope.js

@@ -861,7 +861,12 @@ function $RootScopeProvider() {
 
         this.$broadcast('$destroy');
         this.$$destroyed = true;
-        if (this === $rootScope) return;
+
+        if (this === $rootScope) {
+          //Remove handlers attached to window when $rootScope is removed
+          $browser.$$applicationDestroyed();
+          return;
+        }
 
         for (var eventName in this.$$listenerCount) {
           decrementListenerCount(this, this.$$listenerCount[eventName], eventName);

src/ngMock/angular-mocks.js

@@ -57,6 +57,7 @@ angular.mock.$Browser = function() {
     return listener;
   };
 
+  self.$$applicationDestroyed = angular.noop;
   self.$$checkUrlChange = angular.noop;
 
   self.cookieHash = {};