[csswg-drafts] [css-color-hdr] Add permission policy (or other mechanism) to irreversibly limit EDR (#11704)

squelart has just created a new issue for https://github.com/w3c/csswg-drafts:

== [css-color-hdr] Add permission policy (or other mechanism) to irreversibly limit EDR ==
(Originally brought up in https://github.com/w3c/csswg-drafts/issues/11558)

As a naive web author, I would like to do something like:
- Show a carousel of images in `dynamic-range-limit: constrained` HDR,
- except for one currently-selected child image that can "punch through" as `high`/`no-limit`;
- And on the side I'd like to show an iframe with ads, but force it down to `standard`, and prevent it from ever going any higher.

Could there be a permission policy that can be applied to iframes, e.g.: `allow="extended-dynamic-range"`,  `allow="constrained-extended-dynamic-range"`? (Or something more flexible with options that match current/future `dynamic-range-limit` values.)

Other ideas?

Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/11704 using your GitHub account


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Received on Thursday, 13 February 2025 19:23:36 UTC