[Webkit-unassigned] [Bug 280172] New: onwheel event can't pass over iframe

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon Sep 23 03:41:48 PDT 2024


https://bugs.webkit.org/show_bug.cgi?id=280172

            Bug ID: 280172
           Summary: onwheel event can't pass over iframe
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Frames
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: hanliao1998 at gmail.com

Dear Developers,

I am experiencing an issue with the WheelEvent across iframes. For example, in this link: https://codepen.io/Liao-Han-the-encoder/full/jOgOrMq.

When I try to scroll using iPhone mirroring or from an iPad with a Magic Keyboard, the WheelEvent cannot be detected by the inner iframe. This is crucial for some applications, such as Google Docs, which often embed into iframes and rely on wheel events to implement scrolling on the canvas.

I have noticed that this issue only occurs on iPad and iOS devices. Could this be a bug or a feature specific to mobile devices?

Sincerely,
Han

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