diff --git a/source/Ox/js/Fallback.js b/source/Ox/js/Fallback.js
index 2ab2e492..07e08c9a 100644
--- a/source/Ox/js/Fallback.js
+++ b/source/Ox/js/Fallback.js
@@ -118,3 +118,10 @@ if (!Object.keys) {
         return ret;
     };
 }
+
+// see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/String/Trim
+if (!String.prototype.trim) {
+    String.prototype.trim = function() {
+        return this.replace(/^\s+|\s+$/g, '');
+    };
+}