STR:

1. Open this test case in Edge. (Rename to .html.)
2. Try to switch between focus and browse modes with NVDA+space.
   • Expected: NVDA should indicate that it is switching.
   • Actual: Nothing happens.

role="document" breaks detection of the EdgeHTMLRootContainer, I guess because it changes the UIA control type.

Practical impact: Can't read the ARIA 1.1 spec in Edge.

CC @michaelDCurran.