Streaming downloadable media does not have media notification

[rocketsroger]

For the site https://file-examples.com/index.php/sample-video-files/. Some file types such as MP4 is streamed but does not have a media notification.

┆Issue is synchronized with this Jira Task

[rocketsroger]

Another URL test case https://www.learningcontainer.com/mp4-sample-video-files-download/

[rocketsroger]

Related https://bugzilla.mozilla.org/show_bug.cgi?id=1694192

[sv-ohorvath]

The same issue with the Fenix automated UI tests in MediaNotificationTest https://github.com/mozilla-mobile/fenix/issues/15754

[lobontiumira]

Reproducible on Beta 91.0.0-beta.5 with Sony Xperia Z5 Premium (Android 7.1.1).

[sv-ohorvath]

I can still reproduce this issue sometimes. I've also found that muted videos don't have a notification even after un-muting and this is reproducible 100%. For example, the first video on https://pauljadam.com/demos/autoplay-loop-muted-controls.html Videos without sound don't show a notification either. Also: in our UI tests we assert BrowserStore.state.selectedTab?.mediaSessionState?.playbackState as PLAYING, but in the cases above it returns false.

[plwt]

User feedback: https://support.mozilla.org/en-US/questions/1385592

[jens1o]

We also received user feedback via Google Play on this topic, most notably YouTube audio controls seemed to stop appearing.

[gabrielluong]

Moved to bugzilla: https://bugzilla.mozilla.org/show_bug.cgi?id=1796359

Change performed by the Move to Bugzilla add-on.