Bug 266683

Summary:	html/semantics/popovers/popover-light-dismiss.html WPT is failing on mac-wk2 after enabling async overflow scrolling
Product:	WebKit	Reporter:	Abrar Rahman Protyasha <a_protyasha>
Component:	Tools / Tests	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	a_protyasha, ntim, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://bugs.webkit.org/show_bug.cgi?id=263810

Description Abrar Rahman Protyasha 2023-12-20 00:27:59 PST

Async overflow scrolling was enabled by default for web platform tests in 270071@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.

Comment 1 Radar WebKit Bug Importer 2023-12-20 00:28:07 PST

<rdar://problem/119919210>