[Webkit-unassigned] [Bug 72930] New: window.getMatchedCSSRules() not supporting pseudo element

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=72930

           Summary: window.getMatchedCSSRules() not supporting pseudo
                    element
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Blocker
          Priority: P1
         Component: HTML DOM
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: qghc36 at motorola.com


What steps will reproduce the problem?
1. Create CSS rules that apply to an element (including pseudo-element selectors)
2. Call window.getMatchedCSSRules(domElement, pseudoElementString), with pseudoElementString corresponding to those used in step 1.

What is the expected result?
The method should return a rule list containing the rules with pseudo element/class selectors.

What happens instead?
It only returns a rule list with the non-pseudo element/class selectors.

Please provide any additional information below. Attach a screenshot if
possible.
I've provided a html page which is a demo of the bug. Additionally, it would be very convenient to be able to call this method and have it return all rules applying to the passed element for all pseudo elements/classes in one call. Further, it would also be convenient to optionally return the rule list in order of selector specificity, or provide the specificity value as a part of the CSSRule object.

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