I work on a cool project where AngularJS is used for rendering of business data in a SharePoint portal. One of the beautiful parts of AngularJS is the client validation. AngularJS understands the new html5 attributes like “required” and pattern, which makes the markup and javascript concise and semantic. Recently I ran into a problem: The SharePoint webparts which had html forms with required fields were impossible to add to a page in the web browser, neither was it possible to edit the pages with these webparts.