[Webkit-unassigned] [Bug 274657] New: Multiple transform with matrix3d() produces different result

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=274657

            Bug ID: 274657
           Summary: Multiple transform with matrix3d() produces different
                    result
           Product: WebKit
           Version: Safari 17
          Hardware: iPhone / iPad
                OS: iOS 17
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: kipashmobile at gmail.com
                CC: koivisto at iki.fi

Created attachment 471499

  --> https://bugs.webkit.org/attachment.cgi?id=471499&action=review

Observe red box being visible on iOS

## What is broken
Element's position after multiple transformations is different then on other browsers.

## How to reproduce:
Open the attached HTML and observe the RED box not being completely overlayed by the green one.

## How it is suppose to look like:
The green box should overlay the red box

## More context
The red box is a background svg was made from a screenshot from Windows Chrome.

This bug perhaps shares something in common with this bug: https://bugs.webkit.org/show_bug.cgi?id=274654

## Reproduced in:
- Safari iOS 17.5.1 (21F90)
- iOS Chrome (125.0.6422.80)
- iOS Firefox (126.1 (41973))

## Works correctly in:
- Android Chrome (125.0.6422.52)
- Android Firefox (124.1.0)
- Windows Chrome (125.0.6422.77)
- Windows Firefox (126.0)

## Unconfirmed:
- Playwright's Webkit (Playwright 1.44.1) -> There it transformed the green box out of the screen.

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