i am trying to connect to my kamailio through websocket. I added the below code in my config file:

 event_route[xhttp:request] {
   xlog("websocket connection request");
   set_reply_close();
   set_reply_no_connect();
   if (ws_handle_handshake())
                {
                         exit;
                }
    xhttp_reply("404", "Not found", "", "");
}

However, when I try to connect from my web phone, It shows :

Aug 15 15:22:31 ubuntu /usr/local/kamailio-devel//sbin/kamailio[17202]: WARNING: xhttp [xhttp_mod.c:133]: mod_init(): event_route[xhttp:request] is empty

Can someone please tell me what wrong im doing ?