Bug 268250

Summary: Website moves up after full reload / safari restart
Product: WebKit Reporter: Paul Rhomberg <paulrhomberg01>
Component: HistoryAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: ashley, beidson, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: Safari 17   
Hardware: iPhone / iPad   
OS: iOS 17   
Attachments:
Description Flags
Video showcasing the bug none

Paul Rhomberg
Reported 2024-01-28 06:17:35 PST
Created attachment 469581 [details] Video showcasing the bug When a web page reloads after closing the safari browser, the content shifts up. This might also be happening in applications utilizing a web view, but I was not able to consistently reproduce the bug there. In order to get this to happen, you need to visit a web page (I was using https://openguessr.netlify.app) and then close the safari browser. The next step is to reopen the browser and you will notice that it has moved up. I have attached a video showcasing this.
Attachments
Video showcasing the bug (19.25 MB, video/quicktime)
2024-01-28 06:17 PST, Paul Rhomberg 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2024-02-04 06:18:14 PST
<rdar://problem/122268772>
Paul Rhomberg
Comment 2 2024-02-15 11:59:33 PST
I think I‘ve found the cause for this issue: After adding a few more objects to the site with the display: none and visibility: hidden css properties safari now scrolls up significantly more when replicating this bug. I didn’t get to test whether the display or the visibility properties are responsible for this (or maybe both) but I think this might he helpful for fixing this issue.
Paul Rhomberg
Comment 3 2024-02-15 12:00:50 PST
*I mean elements, not objects ;)
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