Re: [csswg-drafts] [cssom-view] Clarify about scroll completion (#11973)

When testing with the [referenced testcase](https://bug1954609.bmoattachments.org/attachment.cgi?id=9473512), I noticed that doing a quick flick (near the end of scrolling within the iframe) produces a series of `wheel` events where `deltaY` increases and then decreases, while `pageY` remains constant. I assume these are momentum scroll events, which suggests they're exposed to the web?

In Firefox, it looks like we fire the `scrollend` event immediately after scrolling truly stops, ignoring those momentum events — unlike Chrome, which seems to include them before sending out `scrollend`. Please correct me if I’m misunderstanding.

In Safari I do not see `scrollend` events at all, so I assume it's not implemented yet.

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Received on Monday, 24 March 2025 10:33:34 UTC