From 14fb46647d492163fbae616b4a6212bc17926398 Mon Sep 17 00:00:00 2001
From: Alexandra Qin <alexandraqin@gmail.com>
Date: Wed, 13 Aug 2014 11:59:13 -0400
Subject: [PATCH] Add customEvent polyfill for IE9-10

---
 EventListener.js | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/EventListener.js b/EventListener.js
index 177ce91..5d9182d 100644
--- a/EventListener.js
+++ b/EventListener.js
@@ -142,4 +142,16 @@ this.Element && Element.prototype.attachEvent && !Element.prototype.addEventList
 
 		return event;
 	};
-})();
\ No newline at end of file
+})();
+
+// polyfill for IE9-10 taken from https://gist.github.com/james2doyle/7945320
+(function () {
+  function CustomEvent (event, params) {
+    params = params || { bubbles: false, cancelable: false, detail: undefined };
+    var evt = document.createEvent('CustomEvent');
+    evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
+    return evt;
+   };
+  CustomEvent.prototype = window.CustomEvent.prototype;
+  window.CustomEvent = CustomEvent;
+})();