[Webkit-unassigned] [Bug 47817] New: FrameLoader::IsProcessingUserGesture is true for JavaScript initiated downloads

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=47817

           Summary: FrameLoader::IsProcessingUserGesture is true for
                    JavaScript initiated downloads
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Page Loading
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: pierre.lafayette at gmail.com


Created an attachment (id=71028)
 --> (https://bugs.webkit.org/attachment.cgi?id=71028&action=review)
Test case

If I click on a link that navigates to a page which uses setTimeout to initiate a download (e.g. setTimeout("window.location = 'file.exe'", 5000)), FrameLoader::IsProcessingUserGesture is still true when loading of file.exe begins.

It seems that the UserGestureState is set to PossiblyProcessingUserGesture and the !activeFrame conditional gets hit.

bool ScriptController::processingUserGesture()
{
    Frame* activeFrame = V8Proxy::retrieveFrameForEnteredContext();
    // No script is running, so it is user-initiated unless the gesture stack
    // explicitly says it is not.
    if (!activeFrame)
        return UserGestureIndicator::getUserGestureState() != DefinitelyNotProcessingUserGesture;

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