When I at HBO GO and enlarged (fullscreen) the player, the layer of player seems become disabled. So that when I want click on the progress bar or any buttons, it doesn't click on the player but the link on the page which behind the player. https://i.imgur.com/mYJLZun.jpg (The control panel in player covered the red square. ) When the player is "fullscreen", and I see the video in whole screen. I can not click on control panel but the links in the red square. Windows 10 1803 Firefox 66.0.5 (have deleted all profile when test it)