socket.io.js:4026 WebSocket connection to 'ws://http://www.lindejiang.com/socket.io/?EIO=3&transport=websocket&sid=Fgdnzi1HSCPDj-ljAAG4' failed: Error during WebSocket handshake: Unexpected response code: 400
报这个错误，虽然还是能连接，但是有这个错误总是担心。求助各位吧友