Bug 251378

Summary: Fullscreen page appears completely misaligned on scrolling up and down
Product: WebKit Reporter: joemerramos
Component: WebKit APIAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: ajuma, jer.noble, ntim, simon.fraser, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: Safari 16   
Hardware: iPhone / iPad   
OS: Unspecified   
Attachments:
Description Flags
Reproducing bug none

joemerramos
Reported 2023-01-30 11:53:39 PST
Created attachment 464756 [details] Reproducing bug When using the fullscreen API, scrolling down then scrolling up will cause the fullscreen to misalign and cause the screen to be in a broken state making it hard for users to properly use or exit fullscreen mode. Steps to repro: On Safari: 1. Navigate to https://davidwalsh.name/demo/fullscreen.php 2. Tap on the Launch Fullscreen button 3. Tap on the > Back to: Fullscreen API button 4. Scroll up and scroll down Observed results: Fullscreen page is misaligned on scrolling up and down Expected results: Fullscreen page should not misalign on scrolling up and down
Attachments
Reproducing bug (45.43 MB, video/mp4)
2023-01-30 11:53 PST, joemerramos 		no flags
Details
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Simon Fraser (smfr)
Comment 1 2023-01-30 13:21:18 PST
Is this new in iOS 16?
Radar WebKit Bug Importer
Comment 2 2023-01-30 13:23:00 PST
<rdar://problem/104834393>
joemerramos
Comment 3 2023-01-30 13:30:39 PST
I just tested on iOS 15.5 and was able to reproduce.
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