1 Test WebSocket bad sub-protocol names (empty).
3 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
5 PASS new WebSocket("ws://127.0.0.1:8880/simple", "") threw exception SyntaxError: Failed to construct 'WebSocket': The subprotocol '' is invalid..
6 PASS successfullyParsed is true