diff --git a/readabilitySAX/readabilitySAX.xml b/readabilitySAX/readabilitySAX.xml
index 1f2adc6d..428a9823 100644
--- a/readabilitySAX/readabilitySAX.xml
+++ b/readabilitySAX/readabilitySAX.xml
@@ -26,6 +26,16 @@
 						return new F();
 				   };
 			}
+			//polyfill for string#trim
+			if (!String.prototype.trim) {
+				   //http://blog.stevenlevithan.com/archives/faster-trim-javascript
+				   var trimBeginRegexp = /^\s\s*/;
+				   var trimEndRegexp = /\s\s*$/;
+				   String.prototype.trim = function () {
+					   return String(this).replace(trimBeginRegexp, '').replace(trimEndRegexp, '');
+				   };
+			}
+			//polyfill for function#bind
 			if (!Function.prototype.bind) {
 				 Function.prototype.bind = function (oThis) {
 				   if (typeof this !== "function") {