Add missing http version on websockets scope
@@ -133,6 +133,7 @@ class WebSocketProtocol(websockets.WebSocketServerProtocol):
self.scope = {
"type": "websocket",
"asgi": {"version": self.config.asgi_version, "spec_version": "2.1"},
+ "http_version": "1.1",
"scheme": self.scheme,
"server": self.server,
"client": self.client,
