[Webkit-unassigned] [Bug 241730] New: IntersectionObserver stops tracking when cmd+ is used to zoom in

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=241730

            Bug ID: 241730
           Summary: IntersectionObserver stops tracking when cmd+ is used
                    to zoom in
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: DOM
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: simon.fraser at apple.com

When Zooming IN using cmd +, IntersectionObserver stops observing. 

Steps To Reproduce:
1. Open the attached example
2. Scroll Down
3. Assert it works fine and highlights the items at around 35% from top.
4. Now zoom in.
5. Assert it no longer highlights

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