H5 chrome调试，控制台老是打印websocket链接错误，如何去掉

调试的时候，频繁输出WebSocket connection to 'ws://localhost/sockjs-node/024/ffhh1ras/websocket' failed: WebSocket is closed before the connection is established.
这个怎么关闭啊。之前记得是改一个js文件，现在忘记了