1532692 - Picture in Picture mode video doesn't work with videos with a "poster" attribute

Status: RESOLVED FIXED

Description

[Alice0775 White]

Build ID 20190305092747
User Agent Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:67.0) Gecko/20100101 Firefox/67.0

Reproducible: only certain video with/without WebRender

Steps to reproduce:

1. enable media.videocontrols.picture-in-picture.enabled
2. Visit https://www.mozilla.org/en-US/contribute/ and playback
3. Right click on video, choose Picture in Picture

Actual Results:
Video pops out, but video would not playback.
Only placeholder image is displayed.

Expected Result:
Video should be continue playing.

Comment 1

[:Gijs (he/him)]

Surfacing this for Mike to look at and prioritize. :-)

Comment 2

[Mike Conley (:mconley) (:⚙️)]

Attachment: Bug 1532692 - Clear poster attributes from videos that we're cloning to visually. r?jya

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/9a94bd3da98f
Clear poster attributes from videos that we're cloning to visually. r=jya

Comment 4

[Cristian Brindusan [:cbrindusan]]

Backed out changeset 9a94bd3da98f (Bug 1532692) for mochitest failures at test_cloneElementVisually_poster.html.

Backout: https://hg.mozilla.org/integration/autoland/rev/6943cbd4af0564fb1b33922bf90ba48370c0439a

Push that started the failures: https://treeherder.mozilla.org/#/jobs?repo=autoland&resultStatus=pending%2Crunning%2Csuccess%2Ctestfailed%2Cbusted%2Cexception&revision=9a94bd3da98faf9f0bc27699a49cafe4b9315709&selectedJob=232591072

Failure log: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=232591072&repo=autoland&lineNumber=1545

Comment 5

[Mike Conley (:mconley) (:⚙️)]

Looking.

Comment 6

[Mike Conley (:mconley) (:⚙️)]

Waiting for the pause event seems to be sufficient, at least according to https://treeherder.mozilla.org/#/jobs?repo=try&revision=5098de1641eb650f1b0f6988db77405f9b3dc27a.

Re-landing.

Comment 7

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/5833aea8a83b
Clear poster attributes from videos that we're cloning to visually. r=jya

Comment 8

[Dorel Luca [:dluca]]

https://hg.mozilla.org/mozilla-central/rev/5833aea8a83b