Django channels and ws clients

[mainmaster]

Hi. The chat example from the documentation works great. But I'm having problems when connecting 3rd party clients, for example

andrey@andrey-desktop:~$ wscat -c "ws://127.0.0.1/ws/chat/lobby/"
error: Unexpected server response: 403

postman won't connect either.
screenshot

I see

WebSocket HANDSHAKING /ws/chat/lobby/ [127.0.0.1:39770]
WebSocket REJECT /ws/chat/lobby/ [127.0.0.1:39770]
WebSocket DISCONNECT /ws/chat/lobby/ [127.0.0.1:39770]

I understand that this may be an authorization problem, but the example(room.html) from the chat does not do authorization

I may be doing something completely wrong, but please help me.