From 4a17e6906c0ce751eac3afdee55aaf4487fdf5d6 Mon Sep 17 00:00:00 2001
From: Rob Wormald <robwormald@gmail.com>
Date: Fri, 4 Dec 2015 15:33:41 -0800
Subject: [PATCH] fix(async): improve Rx support in ObservableWrapper

---
 modules/angular2/src/facade/async.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/angular2/src/facade/async.ts b/modules/angular2/src/facade/async.ts
index 7ee58ead00..e3602a6249 100644
--- a/modules/angular2/src/facade/async.ts
+++ b/modules/angular2/src/facade/async.ts
@@ -39,7 +39,7 @@ export class ObservableWrapper {
     return emitter.subscribe({next: onNext, error: onError, complete: onComplete});
   }
 
-  static isObservable(obs: any): boolean { return obs instanceof RxObservable; }
+  static isObservable(obs: any): boolean { return !!obs.subscribe; }
 
   /**
    * Returns whether `obs` has any subscribers listening to events.