Remove a corrupted widget from blogger layout panel
Trying to load a new XML template for your blog could happen quite frequently that some widget you already have included or present in the template you just loaded become damaged with the result you can not remove it anymore. The practical effect of this damage is a blank page inside the window opened by click over the "edit" link of the widget itself. Blank page mean that no buttons are showed than is not possible to click over the "Remove" button for remove the current widget. Looking around I found a small trick that can help to get out of this unfortunate situation.