[Webkit-unassigned] [Bug 115104] New: EventSource: Synchronous loader callback not handled properly

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=115104

           Summary: EventSource: Synchronous loader callback not handled
                    properly
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: per-erik.brodin at ericsson.com


When attempting a cross-origin request towards a non-HTTP URL, an early verification of the protocol scheme will cause didFailAccessControlCheck to be called synchronously before the loader has even finished being created. This special case is not handled properly, since we try to cancel a non-existing loader, which results in a crash.

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