[Webkit-unassigned] [Bug 71152] New: selectors should match attribute name with case sensitivity based on element & document type

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=71152

           Summary: selectors should match attribute name with case
                    sensitivity based on element & document type
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rafaelw at chromium.org
                CC: darin at apple.com, ian at hixie.ch, koivisto at iki.fi,
                    ojan at chromium.org


E.G. in, the following document:

<svg width="100%" height="100%" viewBox="0 0 100 1"
  xmlns="http://www.w3.org/2000/svg" version="1.1">

    <style type="text/css"><![CDATA[
        path { fill:none; stroke:black; stroke-width:1 }
    ]]></style>

    <path d="M0,0 L100,0" pathLength="200" stroke-dasharray="100,100"/>
</svg>

   document.querySelector('*[pathLength]');

should return the path element. This currently only works if the document *isn't* html. If it is html then the above selector matches nothing because the selector parser grammar lower-cases the selectorAttributeName

>From reading the spec & talking with Hixie & Ojan, the correct for matching attribute names appears to be:

-if html document & html element: match case-insensitive
-otherwise match case-sensitive

FWIW, This is Gecko's current behavior.

I'm happy to work on a patch for this if a likely reviewer agrees this is the correct behavior.

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