[Webkit-unassigned] [Bug 29643] New: Unnecessary image resource requests with CSS selectors

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=29643

           Summary: Unnecessary image resource requests with CSS selectors
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Windows XP
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Page Loading
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: simast at gmail.com


Created an attachment (id=39923)
 --> (https://bugs.webkit.org/attachment.cgi?id=39923)
Test case

Open attached test case and observe web inspector resources tab. Two requests
are made for images when only one is valid/required. This is not a web
inspector related bug - my web server access logs show them too (tested with
local images, not Google of course).

Gecko/Presto behaves as expected - no redundant requests. Is this intended in
WebKit? As that kind of resource "override" is useful, especially with newer
CSS features, such as media queries, where it makes sense to use conditions for
different/smaller/larger background images.

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