diff --git a/conf/settings.json b/conf/settings.json
index d51e36c..97c6d68 100644
--- a/conf/settings.json
+++ b/conf/settings.json
@@ -434,7 +434,7 @@ __COMMENT_IF_LDAP_DISABLED__		},
   /*
    * Restrict socket.io transport methods
    */
-  "socketTransportProtocols" : ["xhr-polling", "jsonp-polling", "htmlfile"],
+  "socketTransportProtocols" : ["websocket", "polling"],
 
   "socketIo": {
     /*