From a0ad3bbec1fe179313a4936418d1247ed34b2f41 Mon Sep 17 00:00:00 2001
From: Kevin Schaaf <kschaaf@google.com>
Date: Wed, 22 Feb 2017 15:40:14 -0800
Subject: [PATCH] Check documentElement instead of body to guarantee it's
 there.

---
 src/standard/configure.html | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/standard/configure.html b/src/standard/configure.html
index 91a1319ce1..404a21a60b 100644
--- a/src/standard/configure.html
+++ b/src/standard/configure.html
@@ -46,7 +46,7 @@
   // When true, `this.properties` is bad juju due to obsolete `properties`
   // accessors on instances of HTMLElement
   var avoidInstanceProperties =
-    Boolean(Object.getOwnPropertyDescriptor(document.body, 'properties'));
+    Boolean(Object.getOwnPropertyDescriptor(document.documentElement, 'properties'));
 
   Polymer.Base._addFeature({