[Webkit-unassigned] [Bug 136188] New: Whether empty spans are rendered depends on their position

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=136188

           Summary: Whether empty spans are rendered depends on their
                    position
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh
               URL: http://jsfiddle.net/aoh4fa50/8/
        OS/Version: Mac OS X 10.9
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ncarter at bentley.edu


Created an attachment (id=237018)
 --> (https://bugs.webkit.org/attachment.cgi?id=237018&action=review)
very small test case; see description for details

Visit the URL for this ticket http://jsfiddle.net/aoh4fa50/8/ or the attached minimal test case to see an example.  The inner span does not appear in the rendered version as it is positioned (i.e., its 1px border is not visible).  However, if you move the span to a different location (e.g., after the A character) then it becomes visible.  Alternately if you remove the outer span, then the inner span becomes visible.  These changes seem like they should have no impact; the span should either be visible always or never, but not contingent on these trivial changes.  (My vote is "always"!)

This issue is discussed further at this StackOverflow question as well: http://stackoverflow.com/questions/25456300/nested-styled-spans-render-differently-in-chrome-firefox-bug-or-feature

Tested in latest nightly, r172857.

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