mock-socket: WebSocket connected with query params won't send a message

With https://github.com/thoov/mock-socket/pull/271, "message" handler is never triggered if a WS had query params

  const testServer = new Server('ws://localhost:8080');

  testServer.on('connection', socket => {
    socket.on('message', data => {
      // never called
    });
  });

  const mockSocket = new WebSocket('ws://localhost:8080?foo=bar');

  mockSocket.onopen = function open() {
    this.send('Testing');
  };

That’s because in WS’ send handler lookup performed for the full URL, that includes query part const server = networkBridge.serverLookup(this.url);