[Webkit-unassigned] [Bug 7936] New: Inconsistent toString behavior for document.styleSheets, cssRules, etc.

[bugzilla-daemon at opendarwin.org]

http://bugzilla.opendarwin.org/show_bug.cgi?id=7936

           Summary: Inconsistent toString behavior for document.styleSheets,
                    cssRules, etc.
           Product: WebKit
           Version: 417.x
          Platform: Macintosh
        OS/Version: Windows XP
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: CSS
        AssignedTo: webkit-unassigned at opendarwin.org
        ReportedBy: ytpete at gmail.com


Certain CSS-related scripting objects display inconsistent behavior when
attempting to convert them to strings.

See the attached testcase:
 alert(document.styleSheets) --> works as expected
 alert(""+document.styleSheets) --> "No default value" exception
 alert(document.styleSheets.toString()) --> "Value undefined" exception (there
is no toString method).

Clearly, there is code to render the object as a string because the first case
works. It is just not getting invoked properly in the other cases.

Some related CSS objects have the same bug:
 document.styleSheets[i] --> correct
 document.styleSheets[i].cssRules --> buggy
 document.styleSheets[i].cssRules[j] --> buggy


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