Merge pull request #179 from dordille/master

brycekahle · brycekahle · commit 292d4ad8f04b · 2016-04-29T09:33:57.000-07:00
Fix possible race condition in websocket heartbeat callback
diff --git a/src/trans-websocket.coffee b/src/trans-websocket.coffee
@@ -101,7 +101,8 @@ class WebSocketReceiver extends transport.GenericReceiver
             super
 
     heartbeat_timeout: ->
-        @session.close(3000, 'No response from heartbeat')
+        if @session?
+            @session.close(3000, 'No response from heartbeat')
 
 
 
