On the final day before I wanted to submit a Windows Phone 7 application, the facebook integration functionality suddenly stopped working. I was receiving an error message after the user logs in. This also broke an application I had already completed so I knew something had to change on the facebook side of the equation.
After pulling my hair out for over a week and correspondence with the facebook development team I identified the issue. To get this feature working again, I simply needed to add “IsScriptEnabled=true” to the browser element in XAML so it looks like:
With this in place my authentication magically started working again. :P
Here’s hoping this save someone a little bit of time.