[Webkit-unassigned] [Bug 191364] New: scrollable iframe incorrect focus positioning

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=191364

            Bug ID: 191364
           Summary: scrollable iframe incorrect focus positioning
           Product: WebKit
           Version: Safari 12
          Hardware: iPhone / iPad
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Frames
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: k.vendrik at gmail.com

Moved from https://bugzilla.mozilla.org/show_bug.cgi?id=1503682#c3.

Demo: https://bugzilla.mozilla.org/attachment.cgi?id=9021636.

Steps to reproduce:

Embedded a form in a scrollable iframe.

Codepen with iframe: https://codepen.io/kvendrik/pen/ePqNvy
Codepen with iframe contents: https://codepen.io/kvendrik/pen/vVoOgq


Actual results:

When focussing some of the fields the focus seems to be on elements that I'm not tapping on, sometimes in completely different positions.


Expected results:

The input that I tap on should focus.

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