Clarity on websocket interface

Volumio Development Development talks
1

Just trying to test out a few development ideas, and noticed that I can’t actually connect to the Volumio using any websocket client or library. A little reading seems Volumio is using Socket.IO. Socket.IO is not actually the same thing as websockets, en.wikipedia.org/wiki/Socket.IO. A few searches on this forum is looks like several other people can’t connect using websocket either. So can someone confirm that Volumio doesn’t actually support websockets, and only supports Socket.IO?

2

More info volumio.github.io/docs/API/WebSocket_APIs.html

3

Thanks. I read that, and that’s where the confusion is. That states Volumio supports websockets, yet goes onto state Socket.io implementation. The two are not the same. A Socket.io server does not support a standard websocket client.
Very first line.
socket.io/docs/#What-Socket-IO-is-not