Node.js with Socket.io - Long Polling fails and throws “code”:1,“message”:“Session ID unknown” response

Question

I\'m stuck on why a node.js app that was moved to an IIS7 server is now failing. I know IIS7 doesn\'t support web sockets but my understanding was that socket.io would fall

Answer 1

In my project, I tried adding the transport option as a websocket and error no longer appears.

io.connect(url, {
   "transports": ['websocket']
})

It will be a problem with supporting IE and other old browsers as they don't support native websockets, if the application browser compatibility is not an issue this seems a solution.