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w3c / csswg-drafts

CSS Working Group Editor Drafts
https://drafts.csswg.org/
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Prevent iframe from scrolling parent container #7134

Open ms609 opened 2 years ago

ms609 commented 2 years ago

An iframe can cause its parent window to scroll to another position, for example using document.body.scrollIntoView();

There seems to be no way to override (prohibit) this behaviour under the present w3c specification. StackOverflow user Kaiido has suggested a solution that exploits a bug in Chrome, which raises the question as to whether a CSS solution to prevent cross-source scrolling would be possible.

Further details at the StackOverflow answer.

Malvoz commented 2 years ago

See related: https://github.com/w3c/webappsec-permissions-policy/issues/171 / the vertical-scroll document policy feature.