1636381 - Facebook videos stop after scrolling while in PiP mode

Status: RESOLVED DUPLICATE of bug 1547349

(Toolkit :: Video/Audio Controls, defect)

Description

[Vlad Lucaci, Thunderbird QA (:vlucaci)]

Affected versions

• Nightly 78.0a1(ID:20200507214347)
• Firefox 77.0b3(ID:20200507233245)
• Firefox 76.0.1(ID:20200507114007)

Affected platforms

• Windows 10 x64
• Ubuntu 18.04 x64
• macOS 10.15.4

Steps to reproduce

1. Open Firefox and go to the Facebook page.
2. Play a random video and enable the PiP player
3. Scroll the page while PiP player is activated

Expected result

• The video playing in PiP player does not stop or pause.

Actual result

• The video playing in PiP player stops when scrolling the page.
• Attached a screen recording with the issue:
  http: https://drive.google.com/open?id=1mpGyGp_k64MPfJViq0mPqDrRT-XkHxRr

Regression range

• Will return with regression ASAP

Additional notes

• This issue occurs for both normal and Live videos.

Comment 1

[Mike Conley (:mconley) (:⚙️)]

This is effectively the same as bug 1547349 - the site is pausing the video playback when the underlying <video> element is scrolled out of view.