I’m trying to get my wws connection via cloudflare running but unfortunately I’m getting a 521 if I try to connect.
WebSocket connection to ‘wss://DOMAIN.COM:2083/socket.io/?EIO=3&transport=websocket’ failed: Error during WebSocket handshake: Unexpected response code: 521
However my webserver
- is running
- doesn’t block the cloudflare ip.
What can I do?