From e1447aca9e7fb4dc6f479376620f02f4c3aa3638 Mon Sep 17 00:00:00 2001
From: Andre Staltz <andre@staltz.com>
Date: Fri, 4 Dec 2015 11:49:40 +0200
Subject: [PATCH] fix(catch): fix catch() to preserve Subscriber chain

Fix Catch() operator to include CatchSubscriber in the destination Subscriber, in order not to break
unsubscription chains.
---
 src/operator/catch.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/operator/catch.ts b/src/operator/catch.ts
index 44cbe71ee7..450d40b0da 100644
--- a/src/operator/catch.ts
+++ b/src/operator/catch.ts
@@ -39,6 +39,7 @@ class CatchSubscriber<T> extends Subscriber<T> {
               private caught: Observable<any>) {
     super(null);
     this.lastSubscription = this;
+    this.destination.add(this);
   }
 
   _next(value: T) {