[Webkit-unassigned] [Bug 115405] New: An iframe fling should not propagate to a parent iframe

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=115405

           Summary: An iframe fling should not propagate to a parent
                    iframe
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Event Handling
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rniwa at webkit.org
                CC: tonikitoo at webkit.org, benjamin at webkit.org


We might want to back port https://chromium.googlesource.com/chromium/blink/+/fd480448cb8392b78999e056e51faf15d26b1b72

But I'm not sure how relevant this patch is to WebKit.

Fixed scrolling event handling to prevent bubbling up of touchscreen fling gestures when an iframe/div has become fully scrolled. This change affects only flings, regular gesture scrolling still bubbles up once the frame is fully scrolled. It also only affects flings from the touchscreen; touchpad flings retain the bubbling up behaviour.

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