Progress bar won't disappear when full screen

[VRock]

My issue is with the video player in the store page of any game. The progress bar (or tracking bar? the bar at the bottom of the player) when i switch to full screen doesn't disappear. Other video players don't seem to have this problem for example youtube. Is really annoying see the bar when watching full screen a trailer of the game.

[VRock]

So you don't have this problem? How do you fix?