From e2d8446c4d7996378c0e0097417f591d3568cc81 Mon Sep 17 00:00:00 2001
From: Kevin Schaaf <kschaaf@google.com>
Date: Thu, 15 Oct 2015 17:40:04 -0700
Subject: [PATCH] Allow _atEndOfMicrotask to be patchable.

---
 src/lib/async.html | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/lib/async.html b/src/lib/async.html
index 7cce5d6331..93028937e6 100644
--- a/src/lib/async.html
+++ b/src/lib/async.html
@@ -63,8 +63,8 @@
   }
 };
 
-new (window.MutationObserver || JsMutationObserver)
-  (Polymer.Async._atEndOfMicrotask.bind(Polymer.Async))
-  .observe(Polymer.Async._twiddle, {characterData: true});
+new window.MutationObserver(function() {
+    Polymer.Async._atEndOfMicrotask();
+  }).observe(Polymer.Async._twiddle, {characterData: true});
 
 </script>