diff --git a/conf/settings.json b/conf/settings.json
index 7941a35..a131657 100644
--- a/conf/settings.json
+++ b/conf/settings.json
@@ -504,7 +504,7 @@
   /*
    * Restrict socket.io transport methods
    */
-  "socketTransportProtocols" : ["xhr-polling", "jsonp-polling", "htmlfile"],
+  "socketTransportProtocols" : ["websocket", "polling"],
 
   "socketIo": {
     /*