1720337 - Autoplay settings do not apply on AMP websites

Status: RESOLVED INVALID

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

Description

[Arturo Mejia [:amejia]]

Related Fenix issue https://github.com/mozilla-mobile/fenix/issues/20233
STR.

1. Block all the autoplay (AUTOPLAY_INAUDIBLE, PERMISSION_AUTOPLAY_AUDIBLE) permissions.
2. Navigate to https://amp.reddit.com/r/xboxone/comments/88jbo6/thanks_to_the_guy_who_recommended_buying/
3. Scroll down until you see, the video section.

Expected behavior:
None video or audio are played.

Actual behavior:
Video and audio are playing without without the autoplay (AUTOPLAY_INAUDIBLE, PERMISSION_AUTOPLAY_AUDIBLE) permissions .

Not sure if this is platform issue, as I'm also able to reproduce it on the mobile view of Firefox desktop with the profile Nokia 8110 4G.

Firefox desktop mobile profile:

Name
Nokia 8110 4G

User Agent String
Mozilla/5.0 (Mobile; Nokia 8110 4G; rv:48.0) Gecko/48.0 Firefox/48.0 KAIOS/2.5

Size
240x320

GeckoView info

GV: 91.0a1-20210710094507

Comment 1

[Arturo Mejia [:amejia]]

Adding Emilio, as he has worked on similar autoplay issues, hopefully he can help us to clarify if this is a platform bug. Thanks in advance.

Comment 2

[Emilio Cobos Álvarez [:emilio]]

I see the page fall back to a gif, which isn't affected by video autoplay settings (and that's expected)... Is that what you see?

Comment 3

[Emilio Cobos Álvarez [:emilio]]

Oh, apparently some of the reports in the original issue claim there is sound? (and thus that it is a video?)

I'll take a closer look at that.

Comment 4

[Arturo Mejia [:amejia]]

I created a small video, hope it helps to reproduce. To be able to see the issue I have to scroll down to the video section, and wait for the content to load. This is the same issue that we are seeing on Fenix. Let me know if that helps or I could help with anything else :)

Comment 5

[John Lin [:jhlin][:jolin]]

Alastor, could you please help? Thanks!

Comment 6

[Amedyne Moya [:amoya]]

More examples of the issue reported here: https://support.mozilla.org/en-US/questions/1345456#answer-1431490

Comment 7

[Alastor Wu [:alwu]]

Our default blocking autoplay policy would only block autoplay before the page get activated by user gestures, so when you click on the page (for continuing viewing this on the browser), that already activate the page and unblock the page. If users want to avoid this situation, they can change the blocking strategy.