}
@Override
public void prepareHandshakeResponse(NettyWebSocketConnection webSocketConnection) {
webSocketConnection.setVersion("HIXIE-75");
res.setStatus(new HttpResponseStatus(101, "Web Socket Protocol Handshake"));
res.addHeader(UPGRADE, WEBSOCKET);
res.addHeader(CONNECTION, HttpHeaders.Values.UPGRADE);
String origin = req.getHeader(ORIGIN);
if (origin != null) {
res.addHeader(WEBSOCKET_ORIGIN, origin);