How should Media Session work with "inert" media? about mediasession

[marcoscaceres]

@jan-ivar, @youennf, thoughts?

• What happens is a user plays, then an inert attribute is set, what happens.

[jan-ivar]

If inertness doesn't affect playback I don't see why it should affect Media Session. Isn't it mostly for making modal dialogs?

[marcoscaceres]

Isn't it mostly for making modal dialogs?

So, yes. It's useful for dialogs.

But what happens if you have an <iframe inert> that can't be interacted with and it starts controlling the media session?

It seems like scriptable aspects wouldn't be affected. It's just the user can't interact with the iframe.

I think that's what's being asked by @steimelchrome. Is that right?

[marcoscaceres]

I guess we should also check what happens if you have a <video> and you play it and then add inert to it.

[marcoscaceres]

Ok, we just tested it, and indeed you can inert a playing video... which is kinda annoying. We didn't check it with respect to media session though.

However, it remains a question of scriptability: even though it's inert, the media session should still handle the actions.

I don't know if we need to say anything here or in HTML... but maybe one of the specs needs a note about this.

[steimelchrome]

FWIW I created this issue because a bug was opened against Chrome by a developer expecting Media Session to be disabled when an iframe is marked as inert: https://issues.chromium.org/40277135