[csswg-drafts] [css-sizing][repsonsive-iframe] The behavior when content navigates out (#13589)

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

== [css-sizing][repsonsive-iframe] The behavior when content navigates out ==
This is a follow up to the [discussion on Jan 28](https://github.com/w3c/csswg-drafts/issues/1771#issuecomment-3806716273).
> smfr: so what happens to the iframe when you navigate?

@smfr @emilio @Loirooriol @svgeesus @fantasai @dholbert @bfgeek 

I think it's obvious to resize to the new content when it suffices the requirements and it is laid out, so the question is what to do when the content navigates out, until the parent receives the new natural size.

Options are:
1. Keep the last received natural size.
2. Reset to the initial size.

I have mild preference to 1. It leaks the previous size to the new content, but nothing else, and the size not flip-flopping looks more desired by authors and users.

Thoughts?

Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/13589 using your GitHub account


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Received on Tuesday, 3 March 2026 17:24:50 UTC