diff --git a/source/Ox.UI/js/Core/Ox.URL.js b/source/Ox.UI/js/Core/Ox.URL.js
index d548de2b..6606294c 100644
--- a/source/Ox.UI/js/Core/Ox.URL.js
+++ b/source/Ox.UI/js/Core/Ox.URL.js
@@ -709,7 +709,9 @@ Ox.URL = function(options) {
             replaceState(state, title, url);
         }
         function replaceState(state, title, url) {
-            history.replaceState(Ox.extend(state, {title: title}), '', url);
+            history.replaceState && history.replaceState(
+                Ox.extend(state, {title: title}), '', url
+            );
             document.title = title;
             callback && callback(state);
         }