This project is to study more about WebSocket protocol, and try implementing protocol from scratch
https://stackoverflow.com/questions/26401893/who-is-sending-http-websocket-upgrade-requests https://developer.mozilla.org/en-US/docs/Web/HTTP/Protocol_upgrade_mechanism https://en.wikipedia.org/wiki/WebSocket#WebSocket_protocol_handshake https://datatracker.ietf.org/doc/html/rfc6455 https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers