The new possibilities of the HTML5 DOM options can cause problems when creating embedded HTML Android apps.
You should always ensure that whatever the HTML page wants to do, the application allows.
One example I found today:
Anything in a DIV of class ng-scope is not dysplaing in Android webView but is displaying in browser
Uses HTML5 DOM storage, that is not automatically allowed in Android WebView
Enable the DOM storage, that is not automatically enabled in Android webView ->
Thanks to Shachar