RESOLVED MOVED207690
Fixed elements mispositioned after programmatic scrolling in landscape MobileSafari 
https://bugs.webkit.org/show_bug.cgi?id=207690
Summary Fixed elements mispositioned after programmatic scrolling in landscape Mobile...
Roland Soos
Reported 2020-02-13 05:30:29 PST
Created attachment 390632 [details] Screen record Steps to reproduce 1. Turn the iPhone into landscape 2. Open https://smartslider3.com/post-carousel/ 3. Place your finger on the right side of the image and drag it to the left What should happen The slide should move with your finger What went wrong The top bar with "Smart Slider 3" text is a position:fixed element and it somehow went under the native Safari top bar. If you scroll down it fixes itself.
Attachments
Screen record (4.20 MB, video/mp4)
2020-02-13 05:30 PST, Roland Soos 		no flags
Details
Simple testcase (2.03 KB, text/html)
2020-03-24 17:11 PDT, Simon Fraser (smfr) 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2020-02-13 11:36:28 PST
<rdar://problem/59431337>
Simon Fraser (smfr)
Comment 2 2020-02-13 11:38:45 PST
Thanks for the great bug reports!
Roland Soos
Comment 3 2020-02-13 23:14:58 PST
Able to reproduce iPhone: 13.3.1 iPhone 11 Simulator: 13.3 Not able to reproduce on: OSX 13.0.5 iPad 13.2.3 iPad 13.3.1 iPad Simulator 13.3
Simon Fraser (smfr)
Comment 4 2020-03-24 16:29:15 PDT
Note to self: the bug is not that the content jumps up, it's that the fixed bar disappears.
Simon Fraser (smfr)
Comment 5 2020-03-24 17:10:54 PDT
I think this is specific to MobileSafari.
Simon Fraser (smfr)
Comment 6 2020-03-24 17:11:09 PDT
Created attachment 394444 [details] Simple testcase
Brent Fulgham
Comment 7 2022-02-10 20:38:34 PST
The fix for this issue was needed outside the WebKit project, therefore this is being resolved as 'Moved'. This should now be fixed in shipping software.
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