[Webkit-unassigned] [Bug 96308] New: percentage widths rendered wrong in vertical writing mode with orthogonal parent

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=96308

           Summary: percentage widths rendered wrong in vertical writing
                    mode with orthogonal parent
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: johnme at chromium.org
                CC: jchaffraix at webkit.org, ojan at chromium.org


Created an attachment (id=163192)
 --> (https://bugs.webkit.org/attachment.cgi?id=163192&action=review)
Testcase

See the attached testcase. The two red divs have vertical writing modes and width:100%. But instead of stretching the full width of the body (their parent), their width equals the height of the body (i.e. if you resize the window, to make it taller/shorter, the width of the red divs will increase/decrease!). This seems wrong, and I suspect is due to an error at the boundary between the orthogonal writing modes.

It's possible this is related to bug 47238.

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