[Webkit-unassigned] [Bug 281300] New: passive wheel event listener and overscroll-behavior: contain prevent scrolling

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=281300

            Bug ID: 281300
           Summary: passive wheel event listener and overscroll-behavior:
                    contain prevent scrolling
           Product: WebKit
           Version: Safari 18
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Scrolling
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: rchclement at gmail.com
                CC: simon.fraser at apple.com

While using a passive "wheel" event listener "window.addEventListener('wheel',()=>{},{passive:false})" and "overscroll-behavior: contain" on html element, it fully blocks the scrolling. Apparently "overscroll-behavior-y: contain" works using a trackpad but not using a mouse.

It seems to happen on all Safari versions, I tested by myself on Safari 17.2.1 and Safari 18.0.1.

Here is a minimal reproduction link:
https://codepen.io/ClementRoche/pen/WNVRQXG

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