diff --git a/core/addons/ajax.js b/core/addons/ajax.js
index d3f0459..2beee17 100644
--- a/core/addons/ajax.js
+++ b/core/addons/ajax.js
@@ -159,7 +159,7 @@
                 }
             }
         };
-        xmlHttp.open(options.method || 'GET', url, true);
+        xmlHttp.open(options.method || 'GET', url + ts, true);
         if (options.headers) {
             for (var key in options.headers) {
                 xmlHttp.setRequestHeader(key, options.headers[key]);