Add delay before reopening

lib/assets/javascripts/cable/connection.coffee

 # Encapsulate the cable connection held by the consumer. This is an internal class not intended for direct user manipulation.
 class Cable.Connection
+  @reopenDelay: 500
+
   constructor: (@consumer) ->
     @open()
 
@@ -22,8 +24,13 @@ class Cable.Connection
     @webSocket?.close()
 
   reopen: ->
-    @close()
-    @open()
+    if @isState("closed")
+      @open()
+    else
+      try
+        @close()
+      finally
+        setTimeout(@open, @constructor.reopenDelay)
 
   isOpen: ->
     @isState("open")