UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.82 Safari/537.36 Edge/14.14327

Steps to reproduce the problem:
1. Enter Tablet Mode in Win10
2. Go to any youtube video https://www.youtube.com/watch?v=CsulIu3UaUM
3. Click share to share the video in the webpage
4. Select facebook icon in the row of possible share intent targets

What is the expected behavior?
A new window should open in a maximized state (alternatively desirable would be a side-by-side launch but this is limited to UWP apps today

What went wrong?
Instead of opening maximized, the window fights for focus and tries to retain a restored state that is *slightly* less than maximized. There's an infinite loop of system trying to maximize the window per Tablet mode rules, and the facebook sharing window trying to be restored. Very glitchy.

Did this work before? No 

Chrome version: 48.0.2564.82  Channel: stable
OS Version: 10.0
Flash Version: Shockwave Flash 21.0 r0

Yes, this *only* happens when you share to facebook, but not any of the other share intent targets. Twitter, reddit are all fine... Not sure if something is specially hardcoded for facebook, but nevertheless the window behavior is odd and makes it hard to complete the share.