Instantiating any widget with checkboxes defaulted on don't transfer as checked only in IE9.
|Reported by:||beautomated||Owned by:|
In the Links widget, the first two checkboxes are checked by default if using IE8, FireFox or Webkit. If you use IE9, the first two checkboxes will not be checked after you drop the fresh widget instance into a widgetized region of the template or the inactive widgets region. This appears to be an incompatibility between IE9 and a JS library used for copying the data. I do see the proper checked="checked" parameter in the source code of the primary instance and all saved instances. It just doesn't instantiate that parameter in the drag and drop action.
A community plugin we developed also exposes this IE9 / JS library bug: http://wordpress.org/extend/plugins/becounted/
I found a developer discussion and possible fix related to a non WP application here: https://github.com/SteveSanderson/knockout/issues/89