Browser / Version: Firefox Mobile 75.0
Operating System: Android 8.1.0
Tested Another Browser: Yes
Problem type: Site is not usable
Description: Oberlay that can't be dismissed
Steps to Reproduce:
When visiting the mobile version of dominos.ch in any gecko browser a dark (portrait) or white (landscape) overlay is shwon that can't be dismissed or clicked through. This overlay is not shown when requesting the desktop version or in chromium.
From webcompat.com with