Re: [csswg-drafts] [fullscreen] Details on how top layer elements interact with their ancestors (#6939)

I am [implementing changes in chromium](https://chromium-review.googlesource.com/c/chromium/src/+/3646687) to get modal-dialog-in-replaced-renderer.html and modal-dialog-in-table-column.html passing again based on this resolution. However, it also caused these chromium-only tests to regress:
https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/web_tests/fullscreen/rendering/backdrop-object.html
https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/web_tests/fullscreen/rendering/backdrop-iframe.html

Should children of `iframe`s and `object`s not be rendered in the top layer like children of `content: url(...)` and `display:table-column`?
Should `::backdrop` be given any special treatment when it is in the top layer when used like `iframe::backdrop` or `object::backdrop`?
Should `#displayTableColumn::backdrop` be rendered where #displayTableColumn is `display:table-column`?

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Received on Friday, 20 May 2022 22:26:58 UTC