Bug 235904
| Summary: | `scroll-snap-type: x mandatory` jittery | ||
|---|---|---|---|
| Product: | WebKit | Reporter: | Bramus <bramus> |
| Component: | Scrolling | Assignee: | Nobody <webkit-unassigned> |
| Status: | NEW | ||
| Severity: | Normal | CC: | bfulgham, mrobinson, simon.fraser, webkit-bug-importer, zalan |
| Priority: | P2 | Keywords: | InRadar |
| Version: | Safari Technology Preview | ||
| Hardware: | Unspecified | ||
| OS: | macOS 12 | ||
Bramus
When checking out the MDN demos on https://developer.mozilla.org/en-US/docs/Web/CSS/scroll-snap-type with `scroll-snap-type: x mandatory` selected, it acts a bit jittery when slowish-ly scrolling over the scroll container and then releasing. Just before it snaps, you can see it jump back a little bit.
See recording at https://www.youtube.com/watch?v=vLapfq0flMM
You can see it really good at the 4 second, where scrolling back from box 3 to box 2. It jumps a little bit back, before snapping.
| Attachments | ||
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| Add attachment proposed patch, testcase, etc. |
Simon Fraser (smfr)
What Safari are you seeing this with? STP 139?
Bramus
Seeing this behavior in both of these versions (on macOS 12.1 (21C52)):
- Stable: Version 15.2 (17612.3.6.1.6)
- STP: Release 139 (Safari 15.4, WebKit 17613.1.14.41.2)
Bramus
Updated my machine and Safari TP.
Seeing the same behavior on the latest macOS 12.2 (21D49) using STP Release 139 (Safari 15.4, WebKit 17613.1.14.41.3)
Radar WebKit Bug Importer
<rdar://problem/88584478>