1814554 - Video on https://kotaku.com/latest playing despite autoplay being disabled

Status: UNCONFIRMED

(Core :: Audio/Video: Playback, defect, P3)

Description

[odditude]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0

Steps to reproduce:

Confirm autoplay is disabled
Visit https://kotaku.com/latest
Scroll down to the current promoted video (as of 2023-02-01 23:11 GMT-500, it's "The Week In Games: Deliver Us To The Future")
Change tabs
Return to tab with listed site

Actual results:

Video starts playing without user interaction

Expected results:

Video should be prevented from playing

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Audio/Video: Playback' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[az [:az]]

Hi, thanks for the report! Would you be able to paste the contents of your about:support page to help diagnose further? Thank you!

Comment 3

[odditude]

Attachment: about:support data from submitter

Comment 4

[odditude]

Issue may be sporadic; I experienced it on another site earlier today, but am not currently seeing it on kotaku.com. There are no known configuration changes on my end since filing the bug report.

Comment 5

[xrogaan]

Attachment: about_support.txt

Something somewhat similar happens when visiting https://civitai.com. When autoplay is disabled, video won't play. However newly loaded video through lazy load will then play. That behavior will persist whenever the user clicks a link and navigate the website up until the page gets refreshed (F5).