Bug 255592

Summary: [css-scroll-snap] scroll-to-top gesture on page with scroll-snap on html fails
Product: WebKit Reporter: Johannes Odland <johannes.odland>
Component: ScrollingAssignee: Nobody <webkit-unassigned>
Status: RESOLVED FIXED    
Severity: Normal CC: simon.fraser, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: Safari 16   
Hardware: iPhone / iPad   
OS: iOS 16   
See Also: https://bugs.webkit.org/show_bug.cgi?id=245722
https://bugs.webkit.org/show_bug.cgi?id=251003
https://bugs.webkit.org/show_bug.cgi?id=255593
https://bugs.webkit.org/show_bug.cgi?id=255646
https://bugs.webkit.org/show_bug.cgi?id=272079
Attachments:
Description Flags
Video of the issue none

Johannes Odland
Reported 2023-04-18 05:22:08 PDT
Created attachment 465959 [details] Video of the issue A scroll-to-tap gesture on a page with scroll-snap on the root/html element fails. After the browser has scrolled to the top, the browser snaps back to the previous snap position. Steps to reproduce: 1. Open a page with scroll-snap on root (https://johannesodland.github.io/browserbugs/safari-scroll-snap-scroll-to-top-issue.html) 2. Scroll down so that the viewport snaps to a position further down on the page 3. Tap the status bar to scroll to the top of the page Expected result: The browser scrolls to the top of the page and snaps to the first snap position. Actual result: The browser scrolls to the topp of the page, then resnaps to the previous snap point which might be far down on the page
Attachments
Video of the issue (1.23 MB, video/mp4)
2023-04-18 05:22 PDT, Johannes Odland 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2023-04-18 09:54:01 PDT
<rdar://problem/108206197>
Johannes Odland
Comment 2 2023-05-22 04:24:58 PDT
Retested on iOS 16.5. The issue is still present.
Johannes Odland
Comment 3 2023-09-19 09:30:03 PDT
Retested on iOS 17. The issue is still present.
Johannes Odland
Comment 4 2024-03-07 12:13:06 PST
Retested On iOS 17.4. The issue dermed to be resolved 🎉
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