Mac Safari HTML5 Launch On - Unresponsive WASD controls while in Full Screen

I was testing launch on test for mac and wanted to see if the full screen works properly as there were issues with that before. I discovered that after selecting full screen, I was not able to move with WASD anymore, but all other functionality was still working properly

Have a Mac available with Safari

1. Open a new First Person Template BP project
2. Launch on Safari
3. Click Full Screen
4. Attempt to move

Result - Not able to move with WASD inputs

Expected - To be able to move with WASD as well as the arrow keys

Tested in FPS template as well as Third Person Template
Tested in 4.13.1 Binary as well