Change configuration for ActionCable

See article
https://blog.heroku.com/real_time_rails_implementing_websockets_in_rails_5_with_action_cable

config/cable.yml

@@ -1,7 +1,7 @@
 # Action Cable uses Redis by default to administer connections, channels, and sending/receiving messages over the WebSocket.
 production:
   adapter: redis
-  url: <%= ENV["REDISCLOUD_URL"] %>
+  url: <%= ENV["REDIS_URL"] %>
 
 development:
   adapter: redis

config/environments/production.rb

@@ -1,3 +1,18 @@
+
+class ChatActionCable
+  def initialize(app, options={})
+    @app = app
+  end
+
+  def call(env)
+    if Faye::WebSocket.websocket?(env)
+      ActionCable.server.call(env)
+    else
+      @app.call(env)
+    end
+  end
+end
+
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
 
@@ -38,9 +53,6 @@
   # config.action_dispatch.x_sendfile_header = 'X-Sendfile' # for Apache
   # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX
 
-  # Action Cable endpoint configuration
-  # config.action_cable.url = 'wss://example.com/cable'
-
   # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
   config.force_ssl = true
 
@@ -85,4 +97,13 @@
 
   # Do not dump schema after migrations.
   config.active_record.dump_schema_after_migration = false
+
+  # Action Cable endpoint configuration
+  config.action_cable.url = 'wss://www.reactrails.com/cable'
+  config.action_cable.allowed_request_origins = ['https://www.reactrails.com', 'http://www.reactrails.com']
+
+
+
+
+
 end