Why my node returns me a websocket error?

Question

I'm putting my application on an IIS HTTP server, but I get an error:

WebSocket connection to 'wss://xxxx.xxxx.xx:xxxxx/?designer=1&token=&baa=' failed: Error during WebSocket handshake: net::ERR_CONNECTION_RESET.

What could cause it?

Answer 1

This issue might occur if 'PORT' is closed. To resolve this issue make sure that PORT is open.