ActionCable: Allow pass code and reason when closing a WebSocket connection

Author: jasl

actioncable/lib/action_cable/connection/web_socket.rb

@@ -26,8 +26,8 @@ def transmit(data)
         websocket.transmit data
       end
 
-      def close
-        websocket.close
+      def close(code = nil, reason = nil)
+        websocket.close code, reason
       end
 
       def protocol