Looks at the response status code and headers in msg and
determines if they contain a valid WebSocket handshake response
(given the handshake request in msg's request headers).
If supported_extensions is non-null, extensions included in the
response "Sec-WebSocket-Extensions" are verified too. Accepted
extensions are returned in accepted_extensions parameter if non-null.
Looks at the response status code and headers in msg and determines if they contain a valid WebSocket handshake response (given the handshake request in msg's request headers).
If supported_extensions is non-null, extensions included in the response "Sec-WebSocket-Extensions" are verified too. Accepted extensions are returned in accepted_extensions parameter if non-null.
This is a low-level function; if you use soup.session.Session.websocketConnectAsync to create a WebSocket connection, it will call this for you.