Bug 238617
| Summary: | [iOS] Fixed elements jump when scrolling | ||
|---|---|---|---|
| Product: | WebKit | Reporter: | Brent Fulgham <bfulgham> |
| Component: | Scrolling | Assignee: | Nobody <webkit-unassigned> |
| Status: | RESOLVED FIXED | ||
| Severity: | Normal | CC: | bfulgham, jack, simon.fraser, webkit-bug-importer |
| Priority: | P2 | Keywords: | InRadar |
| Version: | WebKit Local Build | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
Brent Fulgham
Converted from a codepen.io test case:
// Just use your mouse wheel and it'll scroll at a steady pace. In Safari, as long as it's
// in debug mode (NOT an iframe), you'll see that the fixed elements on the left/right JUMP
// intermittently under heavy load!
You MUST open this in debug mode so that it's not in an iframe!
https://codepen.io/GreenSock/pen/ExoyEyg/c0402caac3044c3f5bb85022450b059b
| Attachments | ||
|---|---|---|
| Add attachment proposed patch, testcase, etc. |
Radar WebKit Bug Importer
<rdar://problem/91113767>
Simon Fraser (smfr)
I cannot reproduce this in iOS 15.4
Jack Doyle
I was seeing it in Safari 15.3 on Mac OS
Simon Fraser (smfr)
I don't see it in Safari 15.4 on macOS.
Brent Fulgham
@Jack: Can you report your findings with iOS 15.4 or Safari 15.4 on macOS?
Jack Doyle
It does seem significantly improved in 15.4. Good job!
Brent Fulgham
(In reply to Jack Doyle from comment #6)
> It does seem significantly improved in 15.4. Good job!
Thank you! Please let us know if you encounter further issues.