Merge pull request facebook#887 from syranide/textdocument

Test innerText/textContent on document.documentElement instead

src/browser/ui/dom/getTextContentAccessor.js

@@ -32,7 +32,7 @@ function getTextContentAccessor() {
   if (!contentKey && ExecutionEnvironment.canUseDOM) {
     // Prefer textContent to innerText because many browsers support both but
     // SVG <text> elements don't support innerText even when <div> does.
-    contentKey = 'textContent' in document.createElement('div') ?
+    contentKey = 'textContent' in document.documentElement ?
       'textContent' :
       'innerText';
   }