Django websocket connection failure

Question

Websocket is refusing to connect in my project and showing me this message

(index):12 WebSocket connection to 'ws://127.0.0.1:8000/ws/chat/[object%20HTMLScriptElement]/' failed:

When entering the path http://127.0.0.1:8000/chat/wilh/ where (wilh) is just the name of the chat_room, it can be changed with any name, django should connect to websocket and show a starter message that is "hello, world!". but websocket is refusing to connect with that path

here is my project repo link : Repository link