我遇到这个问题,试图使用socket.io-client连接到websocket (Socket.IO.js构建:0.9.16)
Failed to load resource: the server responded with a status of 404 (Not Found)
XMLHttpRequest cannot load https://myserver.it/socket.io/1/?t=1488475368547. No 'Access-Control-Allow-Origin' header is present on the requested res