[Webkit-unassigned] [Bug 245173] New: REGRESSION (iOS 16): Height of inline-block element in vertical-rl layout expands the root element width.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=245173

            Bug ID: 245173
           Summary: REGRESSION (iOS 16): Height of inline-block element in
                    vertical-rl layout expands the root element width.
           Product: WebKit
           Version: Other
          Hardware: iPhone / iPad
                OS: Other
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: baba at bpsinc.jp
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

Created attachment 462330

  --> https://bugs.webkit.org/attachment.cgi?id=462330&action=review

testcase

Steps to reproduce:
* Open attached testcase.html by Safari on iOS 16 in portrait mode.

Expected behavior:
* Horizontal overflow won't happen. The <h1> content is the device width (such as "980" for iPhone 13 Pro Max).

Actual Behavior:
* On iOS 16, the root element causes overflow. The <h1> will be over 3000.

Environment:
This looks a regression on iOS 16. iOS 15.6 works good.

Note:
The logical height (physical width) of the root element seems include the physical height of the inline-block element. The direction is opposite.

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