SoupWebsocketCloseCode

a normal, non-error close

the client/server is going away

a protocol error occurred

the endpoint received data of a type that it does not support.

reserved value indicating that no close code was present; must not be sent.

reserved value indicating that the connection was closed abnormally; must not be sent.

the endpoint received data that was invalid (eg, non-UTF-8 data in a text message).

generic error code indicating some sort of policy violation.

the endpoint received a message that is too big to process.

the client is closing the connection because the server failed to negotiate a required extension.

the server is closing the connection because it was unable to fulfill the request.

reserved value indicating that the TLS handshake failed; must not be sent.