[Webkit-unassigned] [Bug 280154] New: The dropdown menu does not appear when a select element outside the viewport is focused

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=280154

            Bug ID: 280154
           Summary: The dropdown menu does not appear when a select
                    element outside the viewport is focused
           Product: WebKit
           Version: Safari 18
          Hardware: iPhone / iPad
                OS: iOS 18
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Forms
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: pp.mizdra at gmail.com
                CC: cdumez at apple.com, wenson_hsieh at apple.com

Created attachment 472630

  --> https://bugs.webkit.org/attachment.cgi?id=472630&action=review

The video of the issue reproduced using iPad/iOS 18.0/Safari

## Reproduction Steps
1. Open the following URL: https://codepen.io/mizdra/full/mdYJzPq
2. Tap `Focus on select1 (Unexpected behavior)` button

## Expected Behavior
The select element is focused and the dropdown menu appears.

## Actual Behavior
The select element is focused, but the dropdown menu is not displayed.

## Additional Context
This issue only occurs in iOS Safari. It does not occur in macOS Safari.
In addition, it does not occur when the select element in the viewport is focused.

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