我尝试创建与有线服务器的连接并订阅频道，但出现日志错误：
Started GET "/cable" for 172.20.0.1 at 2017-05-27 08:29:39 +0000
Started GET "/cable/" [WebSocket] for 172.20.0.1 at 2017-05-27 08:29:39 +0000
Successfully upgraded to WebSocket (REQUEST_METHOD: GET, HTTP_CONNECTION: upgrade, HTTP_UPGRADE: websocket)
WebSocket error occurred: wrong number of arguments (given 2, expected 1)
我的代码：
// order_slots.coffee
jQuery(document).ready ->
//some jquery code that call create_channel function
create_channel = (order_id) ->
App.cable.subscriptions.create {
channel: "OrderSlotsChannel",
order_id: order_id
},
connected: ->
# Called when the subscription is ready for use on the server
disconnected: -> …