diff --git a/static/js/pandora/URL.js b/static/js/pandora/URL.js
index fec5bff24..7bc4bda97 100644
--- a/static/js/pandora/URL.js
+++ b/static/js/pandora/URL.js
@@ -302,12 +302,12 @@ pandora.URL = (function() {
             views: views
         });
 
-        window.onhashchange = function() {
+        window.addEventListener('hashchange', function() {
             Ox.Request.cancel();
             that.parse();
-        };
+        });
 
-        window.onpopstate = function(e) {
+        window.addEventListener('popstate', function(e) {
             Ox.Request.cancel();
             self.isPopState = true;
             $('.OxDialog:visible').each(function() {
@@ -337,7 +337,7 @@ pandora.URL = (function() {
             } else {
                 that.parse();
             }
-        };
+        });
 
         return that;