Only open Action Cable connection if data is being sent

actioncable/app/assets/javascripts/action_cable/connection.coffee

@@ -6,9 +6,11 @@ class ActionCable.Connection
   @reopenDelay: 500
 
   constructor: (@consumer) ->
-    @open()
 
   send: (data) ->
+    unless @isOpen()
+      @open()
+
     if @isOpen()
       @webSocket.send(JSON.stringify(data))
       true

railties/lib/rails/generators/rails/app/templates/app/assets/javascripts/cable.coffee

@@ -1,11 +1,9 @@
 # Action Cable provides the framework to deal with WebSockets in Rails.
 # You can generate new channels where WebSocket features live using the rails generate channel command.
 #
-# Turn on the cable connection by removing the comments after the require statements (and ensure it's also on in config/routes.rb).
-#
 #= require action_cable
 #= require_self
 #= require_tree ./channels
-#
-# @App ||= {}
-# App.cable = ActionCable.createConsumer()
+
+@App ||= {}
+App.cable = ActionCable.createConsumer()