Re: [w3c/permissions] autoplay permission (#172)

>Don't other permissions change during the lifetime of a document though? For example, after the UA prompts for camera/mic access, and the user grants permission, the observable permission would change there?

That's true. And to clarify, what I meant is that it would be in a binary state `denied` or `granted` and will, most likely start as `denied` then switch to `granted` on every visit. This isn't a common pattern for most permissions. When using the Permissions API, it's fair to assume that a `deny` permission will not be easily overturned.

>>Technically, this shouldn't prevent using a permission but the concept seems off as it's not always linked to the origin and might not be persistent.

> Isn't camera/mic access tied to an origin though?

My point was that permissions are linked to origins but autoplay may or may not. I don't know of a permission that isn't origin-bound at least in Chromium.

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