(cobra connection and bots) set an HTTP header when connecting to help with debugging bots

ixwebsocket/IXWebSocket.cpp

@@ -54,6 +54,7 @@ namespace ix
         std::lock_guard<std::mutex> lock(_configMutex);
         _url = url;
     }
+
     void WebSocket::setExtraHeaders(const WebSocketHttpHeaders& headers)
     {
         std::lock_guard<std::mutex> lock(_configMutex);