From 0c57a00fdb05e08277d83fc29bb15d4c1398738f Mon Sep 17 00:00:00 2001
From: Joshua Peek <josh@joshpeek.com>
Date: Sun, 16 Nov 2014 01:41:56 -0800
Subject: [PATCH] Check if attachEvent is defined

---
 lib/6to5/browser.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/6to5/browser.js b/lib/6to5/browser.js
index fba39705f1..a8e946c859 100644
--- a/lib/6to5/browser.js
+++ b/lib/6to5/browser.js
@@ -75,6 +75,6 @@ var runScripts = function () {
 
 if (global.addEventListener) {
   global.addEventListener("DOMContentLoaded", runScripts, false);
-} else {
+} else if (global.attachEvent) {
   global.attachEvent("onload", runScripts);
 }