diff --git a/lib/client/polyfill.js b/lib/client/polyfill.js
index 6f3ee0df..553f5734 100644
--- a/lib/client/polyfill.js
+++ b/lib/client/polyfill.js
@@ -1,6 +1,6 @@
 var Util, DOM, jQuery;
 
-(function(Util, DOM, $) {
+(function(window, document, Util, DOM, $) {
     'use strict';
     
     if (!window.XMLHttpRequest || !document.head)
@@ -260,4 +260,4 @@ var Util, DOM, jQuery;
         };
     }
     
-})(Util, DOM, jQuery);
+})(window, document, Util, DOM, jQuery);