[Webkit-unassigned] [Bug 209864] New: Repeated scrolls sometimes latch incorrectly

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=209864

            Bug ID: 209864
           Summary: Repeated scrolls sometimes latch incorrectly
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Scrolling
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: simon.fraser at apple.com

Repeated scrolling in a nested scrollable area (like an iframe) sometimes fail to scroll the iframe, after the fix for bug 209790.

This happens when the new scroll has small x and y deltas that make it hard to determine which is the major scrolling axis.

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