[Webkit-unassigned] [Bug 266683] New: html/semantics/popovers/popover-light-dismiss.html WPT is failing on mac-wk2 after enabling async overflow scrolling

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=266683

            Bug ID: 266683
           Summary: html/semantics/popovers/popover-light-dismiss.html WPT
                    is failing on mac-wk2 after enabling async overflow
                    scrolling
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: a_protyasha at apple.com
                CC: ntim at apple.com, webkit-bug-importer at group.apple.com

Async overflow scrolling was enabled by default for web platform tests in 270071 at main. This WPT has been a consistent failure since then. Namely, this WPT now fails one check:

```
diff --git a/LayoutTests/imported/w3c/web-platform-tests/html/semantics/popovers/popover-light-dismiss-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/html/semantics/popovers/popover-light-dismiss-expected.txt
index 6677bc1f44cc..c89f2087faf5 100644
--- a/LayoutTests/imported/w3c/web-platform-tests/html/semantics/popovers/popover-light-dismiss-expected.txt
+++ b/LayoutTests/imported/w3c/web-platform-tests/html/semantics/popovers/popover-light-dismiss-expected.txt
@@ -20 +20 @@ PASS An invoking element that was not used to invoke the popover is not part of
-PASS Scrolling within a popover should not close the popover
+FAIL Scrolling within a popover should not close the popover assert_equals: popover6 should be scrolled expected 50 but got 0
```

We should see if this a real bug or if the test needs to be written differently.

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