Thread:Extension talk:WYSIWYG/Yes: Working with MW-1.21+ with some settings/reply (23)

When I put the line with  into my LocalSettings.php file I can't load any page of the wiki. All I get is a blank page. Without that line I can edit pages with firefox and ie10 (earlier ie versions empty the pages after saving) and the editor chews up all category lines. All category entries just disappear after saving the work! :(