1397102 - Full Screen Playback in MacOS High Sierra has cutout where dock is

Status: RESOLVED DUPLICATE of bug 1390125

(Core :: Audio/Video: Playback, defect)

Description

[charlie.siegel]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:57.0) Gecko/20100101 Firefox/57.0
Build ID: 20170905220108

Steps to reproduce:

1. Play a video on either Youtube or Netflix
2. Enter fullscreen



Actual results:

I Found that there is a cutout on the right side of my screen where the dock lives (it isn't visible though).  See attached screenshot.

I am seeing this on both 57 and the latest 55 release.  It appears to be related to macOS High Sierra in some way.  I am on the latest Public Beta.


Expected results:

It should have played the video in fullscreen without a cutout.

The cutout will move if I move where the dock is.  Also, if I set the dock to autohide, the issue doesn't occur.  Also if I fullscreen Firefox prior to making the video fullscreen, the issue doesn't occur.

Finally, I do not see this issue in Safari, Brave, or Chrome.

Comment 1

[charlie.siegel]

Attachment: Shows cutout in fullscreen on right side where dock is when playing a youtube video.