Bug 257689

Summary: Slow transition / animation of 'sticky' header on Playstation Website
Product: WebKit Reporter: Ahmad Saleem <ahmad.saleem792>
Component: AnimationsAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: dino, graouts, graouts, karlcow, webkit-bug-importer
Priority: P2 Keywords: BrowserCompat, InRadar
Version: Safari Technology Preview   
Hardware: Unspecified   
OS: Unspecified   
URL: https://www.playstation.com/en-gb/ps-plus/#subscriptions
Attachments:
Description Flags
WebKit ToT (same as Safari 16.5) none

Description Ahmad Saleem 2023-06-04 06:14:29 PDT 
Created attachment 466588 [details]
WebKit ToT (same as Safari 16.5)

Hi Team,

While going through Playstation website, I noticed that the animation is jittery and slow compared to Chrome Canary 116.

Link: https://www.playstation.com/en-gb/ps-plus/#subscriptions

Just capturing the video to help out.

Thanks!
Comment 1 Radar WebKit Bug Importer 2023-06-11 06:15:20 PDT 
<rdar://problem/110603549>
Comment 2 Ahmad Saleem 2023-10-21 12:08:28 PDT 
Seems to work fine now in Safari 17 and WebKit ToT on macOS Sonoma. Might be Safari 16.x specific or macOS Ventura?

@Karl - by any chance, can it be tested with Safari 16?
Comment 3 Karl Dubost 2023-10-24 07:09:01 PDT 
Yes probably with Xcode
https://developer.apple.com/documentation/safari-developer-tools/adding-additional-simulators

that would be then accessible through Develop Menu in "Open Page With…"
Comment 4 Antoine Quint 2023-10-26 02:51:44 PDT 
I think Karl got confused with his reply and thought this was related to testing on iOS. I tested this with Safari 16.6 on macOS Ventura 13.5.2 (22G91) and I can confirm that while the issue is very much present there, with macOS Sonoma the issue is no longer present. However, testing a ToT build on macOS Ventura shows the issue is still there. So this may well be an issue below WebKit which got fixed in macOS Ventura, or some Ventura-specific WebKit behavior. Either way, the reported issue is indeed fixed in Safari on macOS Ventura.

Ahmad, does that answer your question?
Comment 5 Ahmad Saleem 2023-10-26 04:08:38 PDT 
(In reply to Antoine Quint from comment #4)
> I think Karl got confused with his reply and thought this was related to
> testing on iOS. I tested this with Safari 16.6 on macOS Ventura 13.5.2
> (22G91) and I can confirm that while the issue is very much present there,
> with macOS Sonoma the issue is no longer present. However, testing a ToT
> build on macOS Ventura shows the issue is still there. So this may well be
> an issue below WebKit which got fixed in macOS Ventura, or some
> Ventura-specific WebKit behavior. Either way, the reported issue is indeed
> fixed in Safari on macOS Ventura.
> 
> Ahmad, does that answer your question?

Yes - it helps. If it is fixed on below WebKit level, do I need to tag this as 'RESOLVED MOVED' or 'RESOLVED CONFIGURATION CHANGED', or we continue to track this since macOS Ventura is supported?
Comment 6 Antoine Quint 2023-10-26 07:49:26 PDT 
Not an expert of Bugzilla resolutions, so your guess is as good as mine.

As to whether we would want to keep this open to fix on Ventura, I can't speak with any kind of authority on that, but I expect a bug specifically targeting a previous OS that does not have an impede the use of a popular website or is a security concern will likely not be deemed a high priority.