public ClientWebSocket()
        {
            if (NetEventSource.IsEnabled)
            {
                NetEventSource.Enter(this);
            }
            WebSocketHandle.CheckPlatformSupport();

            _state   = (int)InternalState.Created;
            _options = new ClientWebSocketOptions();

            if (NetEventSource.IsEnabled)
            {
                NetEventSource.Exit(this);
            }
        }