From da23d4dd395ba529dfc4649ac7d4749f3d2430ee Mon Sep 17 00:00:00 2001
From: Amauri CHAMPEAUX <amauri.champeaux@gmail.com>
Date: Fri, 27 Feb 2015 16:28:48 +0100
Subject: [PATCH] Prevent undefined error

---
 tarteaucitron.js | 25 ++++++++++++++++++-------
 1 file changed, 18 insertions(+), 7 deletions(-)

diff --git a/tarteaucitron.js b/tarteaucitron.js
index a91787c..bc6b1cc 100644
--- a/tarteaucitron.js
+++ b/tarteaucitron.js
@@ -50,14 +50,25 @@ var tarteaucitron = {
                 });
             }
             
-            XMLHttpRequest.prototype.open = function () {
-                this.addEventListener('load', function () {
-                    if (typeof tarteaucitronProLoadServices === 'function') {
-                        tarteaucitronProLoadServices();
+            if (typeof XMLHttpRequest !== 'undefined') {
+                XMLHttpRequest.prototype.open = function () {
+                    
+                    if (window.addEventListener) {
+                        this.addEventListener("load", function () {
+                            if (typeof tarteaucitronProLoadServices === 'function') {
+                                tarteaucitronProLoadServices();
+                            }
+                        }, false);
+                    } else {
+                        this.attachEvent("onload", function () {
+                            if (typeof tarteaucitronProLoadServices === 'function') {
+                                tarteaucitronProLoadServices();
+                            }
+                        });
                     }
-                });
-                origOpen.apply(this, arguments);
-            };
+                    origOpen.apply(this, arguments);
+                };
+            }
         }
     },
     "load": function (params) {