[Webkit-unassigned] [Bug 249645] New: Leaflet map rendering bug

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=249645

            Bug ID: 249645
           Summary: Leaflet map rendering bug
           Product: WebKit
           Version: Safari 16
          Hardware: iPhone / iPad
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: webkit at gis.ee
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

Created attachment 464116

  --> https://bugs.webkit.org/attachment.cgi?id=464116&action=review

Example 1

There are tons of issues with iOS 16 Safari rendering Leaflet map (https://leafletjs.com/)

Most bugs happen when map is more complicated or images are bigger than usual.


One example where map does not render, but needs visibility change or zoom in for re-render.


1. Open https://gis.ee/vfr/
2. See gray background.
3. Change app or go to home screen.
4. Re open safari
5. Map image appears.

1. Open https://gis.ee/vfr/
2. See gray background.
3. Press Zoom-In button.
4. Map image appears.

Example map image is 16MB.

Works in every other browser in desktop.
Works even in cheapest android. So performance is not an issue.

Does not work in any iOS browser/webview.

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