[Webkit-unassigned] [Bug 50502] New: REGRESSION (r72988): change to CSSImportRule breaks loading in iframes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=50502

           Summary: REGRESSION (r72988): change to CSSImportRule breaks
                    loading in iframes
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Mac OS X 10.5
            Status: NEW
          Keywords: InRadar, ReviewedForRadar
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: alice.liu at apple.com
                CC: hyatt at apple.com, mitz at webkit.org,
                    pfeldman at chromium.org


Created an attachment (id=75576)
 --> (https://bugs.webkit.org/attachment.cgi?id=75576&action=review)
test case

http://trac.webkit.org/changeset/72988 seems to have broken loading of iframes with pages that use @import somewhere in their style. Attached a test case

steps to repro: 
open attached test case

Expected behavior: the page with url http://www.nytimes.com/2010/11/07/education/07china-t.html?pagewanted=2&ref=education should load in the iframe and then shortly afterward the document is overtaken by http://www.nytimes.com/2010/11/07/education/07china-t.html.  Not sure why, but anyway this is what happens in shipping safari. 5.0.3 

TOT behavior: nothing loads in iframe.

side note: in the test case is a commented-out line that uses http://www.rollingstone.com/politics/news/17390/119236?RS_show_page=1.  This page doesn't use @import and behaves the same way in shipping as TOT.  it also just loads in the iframe and doens't overtake the whole document in both cases. 

<rdar://problem/8728742>

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