I'm using socket.io , but the connection keeps failing

[Dist]

From https://socket.io/docs/v4/

What Socket.IO is not​

CAUTION

Socket.IO is NOT a WebSocket implementation.

Although Socket.IO indeed uses WebSocket for transport when possible, it adds additional metadata to each packet. That is why a WebSocket client will not be able to successfully connect to a Socket.IO server, and a Socket.IO client will not be able to connect to a plain WebSocket server either.

You should not be attempting to use socket.io to connect to Twitch chat. Either use an actual twitch chat library like tmi.js, or use a websocket library.