diff --git a/packages/platform-browser/src/dom/events/dom_events.ts b/packages/platform-browser/src/dom/events/dom_events.ts
index 30720ff2a1..3eec5178fc 100644
--- a/packages/platform-browser/src/dom/events/dom_events.ts
+++ b/packages/platform-browser/src/dom/events/dom_events.ts
@@ -34,8 +34,6 @@ const FALSE = 'FALSE';
 const ANGULAR = 'ANGULAR';
 const NATIVE_ADD_LISTENER = 'addEventListener';
 const NATIVE_REMOVE_LISTENER = 'removeEventListener';
-// use the same symbol string which is used in zone.js
-const stopSymbol = '__zone_symbol__propagationStopped';
 
 const blackListedEvents: string[] =
     (typeof Zone !== 'undefined') && (Zone as any)[__symbol__('BLACK_LISTED_EVENTS')];
@@ -83,9 +81,6 @@ const globalListener = function(event: Event) {
     // itself or others
     const copiedTasks = taskDatas.slice();
     for (let i = 0; i < copiedTasks.length; i++) {
-      if ((event as any)[stopSymbol] === true) {
-        break;
-      }
       const taskData = copiedTasks[i];
       if (taskData.zone !== Zone.current) {
         // only use Zone.run when Zone.current not equals to stored zone
@@ -99,29 +94,7 @@ const globalListener = function(event: Event) {
 
 @Injectable()
 export class DomEventsPlugin extends EventManagerPlugin {
-  constructor(@Inject(DOCUMENT) doc: any, private ngZone: NgZone) {
-    super(doc);
-
-    this.patchEvent();
-  }
-
-  private patchEvent() {
-    if (!Event || !Event.prototype) {
-      return;
-    }
-    const symbol = '__zone_symbol__stopImmediatePropagation';
-    if ((Event.prototype as any)[symbol]) {
-      // already patched by zone.js
-      return;
-    }
-    (Event.prototype as any)[symbol] = Event.prototype.stopImmediatePropagation;
-    Event.prototype.stopImmediatePropagation = function() {
-      if (this) {
-        this[stopSymbol] = true;
-      }
-    };
-  }
-
+  constructor(@Inject(DOCUMENT) doc: any, private ngZone: NgZone) { super(doc); }
 
   // This plugin should come last in the list of plugins, because it accepts all
   // events.
diff --git a/packages/platform-browser/test/dom/events/event_manager_spec.ts b/packages/platform-browser/test/dom/events/event_manager_spec.ts
index e1a405e9b9..480de63bd1 100644
--- a/packages/platform-browser/test/dom/events/event_manager_spec.ts
+++ b/packages/platform-browser/test/dom/events/event_manager_spec.ts
@@ -152,42 +152,6 @@ export function main() {
       expect(receivedEvents).toEqual([]);
     });
 
-    it('should support event.stopImmediatePropagation', () => {
-      const Zone = (window as any)['Zone'];
-
-      const element = el('<div><div></div></div>');
-      getDOM().appendChild(doc.body, element);
-      const dispatchedEvent = getDOM().createMouseEvent('click');
-      let receivedEvents: any[] /** TODO #9100 */ = [];
-      let receivedZones: any[] = [];
-      const handler1 = (e: any /** TODO #9100 */) => {
-        receivedEvents.push(e);
-        receivedZones.push(Zone.current.name);
-        e.stopImmediatePropagation();
-      };
-      const handler2 = (e: any /** TODO #9100 */) => {
-        receivedEvents.push(e);
-        receivedZones.push(Zone.current.name);
-      };
-      const manager = new EventManager([domEventPlugin], new FakeNgZone());
-
-      let remover1 = null;
-      let remover2 = null;
-      Zone.root.run(() => { remover1 = manager.addEventListener(element, 'click', handler1); });
-      Zone.root.fork({name: 'test'}).run(() => {
-        remover2 = manager.addEventListener(element, 'click', handler2);
-      });
-      getDOM().dispatchEvent(element, dispatchedEvent);
-      expect(receivedEvents).toEqual([dispatchedEvent]);
-      expect(receivedZones).toEqual([Zone.root.name]);
-
-      receivedEvents = [];
-      remover1 && remover1();
-      remover2 && remover2();
-      getDOM().dispatchEvent(element, dispatchedEvent);
-      expect(receivedEvents).toEqual([]);
-    });
-
     it('should handle event correctly when one handler remove itself ', () => {
       const Zone = (window as any)['Zone'];