From 8a53bb3969d340309ccb8dac79bdcdc3843f8c1a Mon Sep 17 00:00:00 2001
From: Norbert de Langen <ndelangen@me.com>
Date: Mon, 30 Sep 2019 23:11:00 +0200
Subject: [PATCH] FIX a critical api missing

---
 lib/channels/src/index.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/channels/src/index.ts b/lib/channels/src/index.ts
index 8f154dd6ba0..113837f545d 100644
--- a/lib/channels/src/index.ts
+++ b/lib/channels/src/index.ts
@@ -126,6 +126,10 @@ export class Channel {
     this.addListener(eventName, listener);
   }
 
+  off(eventName: string, listener: Listener) {
+    this.removeListener(eventName, listener);
+  }
+
   private handleEvent(event: ChannelEvent, isPeer = false) {
     const listeners = this.listeners(event.type);
     if (listeners && (isPeer || event.from !== this.sender)) {