What you want to do is look at the SharePoint project’s properties, click on the SharePoint tab and look at the bottom of the dialog. Make sure the Enable Silverlight debugging (instead of Script debugging) option is checked. This will allow you to have the full debugging experience of your Silverlight apps when testing from within SharePoint.
So here’s a workaround!
- Use Chrome instead of IE,
- Rig your SharePoint project to use Silverlight debugging,
Since chrome uses different processes for everything, they can simultaneously debug SL and JS. Also, since you are hooked into the same session, you have access to the SharePoint Client Object Model, and ClientContext.current and all that jazz!
Sweet huh? Happy SharePointing!