I recently tried to use a Wysiwyg editor in a Windows 8 application (XAML/C#) using a webview. I used it first in a blank template and it works well but when I tried to use it in an existant project, it failed.
For an unknown reason, I wasn’t able to type any text in my editor. The code was the same in the two projects but in the second one, the zone where the textarea was supposed to be was empty. So I put my debugger in script mode to explore the DOM and maybe find what happened.
Hope it helps !