[Webkit-unassigned] [Bug 125640] New: WebKit generates a table (instead of inline-table) anonymous wrapper for element with "display:table-cell" and inline-level parent

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=125640

           Summary: WebKit generates a table (instead of inline-table)
                    anonymous wrapper for element with
                    "display:table-cell" and inline-level parent
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: dholbert at mozilla.com


Created an attachment (id=219090)
 --> (https://bugs.webkit.org/attachment.cgi?id=219090&action=review)
testcase

What steps will reproduce the problem?
1. Load attached testcase.

EXPECTED RESULTS:
Both "table-cell, ..." lines should have a black border and a lime background.

ACTUAL RESULTS:
The first "table-cell, ..." line has a solid black line above it, and no background.

As described at https://bugzilla.mozilla.org/show_bug.cgi?id=928074#c22, I think this indicates that WebKit is incorrectly generating an anonymous *block-level* table element to wrap the table-cell. This goes against the CSS 2.1 spec -- as described in step 3 substep 2 at http://www.w3.org/TR/CSS21/tables.html#anonymous-boxes ,

"(If C's parent is an 'inline' box, then [the generated anonymous table] must be an 'inline-table' box; otherwise it must be a 'table' box.)"

And in the testcase, the parent is a <span>, which is an inline box. So, WebKit should generate an inline-table and match the rendering of the lower line that has an explicit inline-table.

I tested with two webkit-based browsers on Ubuntu 13.10:
 - Midori 0.4.3 (not sure what WebKit version)
 - epiphany-browser 3.6.1 (which says "Powered by WebKit 1.10.2")
Both show ACTUAL RESULTS.

Firefox 26 shows EXPECTED RESULTS

See also the related Blink bug, here: http://code.google.com/p/chromium/issues/detail?id=327832

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