Bug 238796

Summary: REGRESSION iOS 15.4: Leaflet map controls get hidden
Product: WebKit Reporter: siim <webkit>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: RESOLVED DUPLICATE    
Severity: Normal CC: bfulgham, simon.fraser, zalan
Priority: P2    
Version: Safari 15   
Hardware: iPhone / iPad   
OS: iOS 15   
Attachments:
Description Flags
video of panning around & hidden controls none

Description siim 2022-04-05 02:58:32 PDT 
Created attachment 456684 [details]
video of panning around & hidden controls

Leaflet (https://github.com/Leaflet/Leaflet) is popular javascript map library.

iOS 15.4 created issue where map controls get hidden under tile layer.

How to reproduce:
* Visit leaflet map app: Example: https://gis.ee/meri/
* Zoom & pan around in map for a while
* See controls hidden under tile layer

Video:
https://i.imgur.com/Uu6H8pR.mp4
Image:
https://user-images.githubusercontent.com/7014925/161598316-48a6a455-fcf8-47c5-97da-cce9be4d374b.png


Github issues:
https://github.com/Leaflet/Leaflet/issues/8068
https://github.com/PaulLeCam/react-leaflet/issues/968
https://stackoverflow.com/questions/71614862/leaflet-control-disapperars-while-dragging-map-on-mobilereact


This problem does not appear in previous iOS versions or any other Android or Desktop browsers.

There are some reports that problem is also present in desktop Safari, but I don't have accesss desktop safari 15.4 to test it.
Comment 1 siim 2022-04-05 03:08:53 PDT 
Sorry, it is already reported here:
https://bugs.webkit.org/show_bug.cgi?id=238589
Comment 2 siim 2022-04-05 03:13:24 PDT 

*** This bug has been marked as a duplicate of bug 238589 ***