Check documentElement instead of body to guarantee it's there.

Polymer · Feb 22, 2017 · a0ad3bb · a0ad3bb
1 parent f2a12cb
commit a0ad3bb
Showing 1 changed file with 1 addition and 1 deletion.
diff --git 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({