diff --git a/overlord/handlers.go b/overlord/handlers.go
index 9669267a..dab472b3 100644
--- a/overlord/handlers.go
+++ b/overlord/handlers.go
@@ -253,21 +253,6 @@ func (o *Server) cleanConnection(client *WorkerClient, serverID string) {
 	client.Close()
 }
 
-func readUserIP(r *http.Request) string {
-	IPAddress := r.Header.Get("X-Real-Ip")
-	if IPAddress == "" {
-		IPAddress = r.Header.Get("X-Forwarded-For")
-	}
-	if IPAddress == "" {
-		IPAddress = r.RemoteAddr
-	}
-	// TODO: For debug, should remove it
-	if IPAddress == "" {
-		return "localhost"
-	}
-	return IPAddress
-}
-
 func getRemoteAddress(conn *websocket.Conn) string {
 	var remoteAddr string
 	log.Println(conn.RemoteAddr().String())
diff --git a/static/game.html b/static/game.html
index be012c39..9523ee19 100644
--- a/static/game.html
+++ b/static/game.html
@@ -94,7 +94,7 @@
     <script src="/static/js/gesture_keyboard.js?1"></script>
     <script src="/static/js/gesture_touch.js?1"></script>
     <script src="/static/js/gesture_joystick.js?1"></script>
-    <script src="/static/js/ws.js?1"></script>
+    <script src="/static/js/ws.js?2"></script>
 
     <script src="/static/js/init.js?1"></script>