[Webkit-unassigned] [Bug 254516] New: Modal gets stuck in in-app browser - iOS 16.4

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=254516

            Bug ID: 254516
           Summary: Modal gets stuck in in-app browser - iOS 16.4
           Product: WebKit
           Version: WebKit Local Build
          Hardware: iPhone / iPad
                OS: iOS 16
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: yourwill55 at gmail.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

Created attachment 465608

  --> https://bugs.webkit.org/attachment.cgi?id=465608&action=review

modal not sticking to top

Problem

we are using Cordova-ios 6.2.0 to create our iOS app. The issue is with the in-app browser feature in our mobile app in the iOS 16.4 beta 3 and beta 4 releases. This issue is not present in the stable iOS version, and i have not made any recent changes to the code that would affect this feature.

What is expected to happen?

The modal should be present at top always while scrolling and editing text fields.

What does actually happen?

The problem is that modal is misplaced in the in-app browser.

To provide more detail, when a user clicks on a link within the in-app browser that should open a modal, the modal does appear but upon scrolling (intermittent) and inputting into text field (always) the modal is floating in the middle of the browser instead of attaching the top which it should be.

Also on one of the page, the page is rendered correctly but upon scrolling the bottom buttons becomes invisible but remains interactive. However, the button should always show at the bottom.

The app is working perfectly using safari browser on all iOS.

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