Bug 232239

Summary:	Viewport offset after soft keyboard dismiss on PWA on iPad
Product:	WebKit	Reporter:	KEn
Component:	Layout and Rendering	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED MOVED
Severity:	Critical	CC:	bfulgham, mplutka, simon.fraser, webkit-bug-importer, wenson_hsieh, zalan
Priority:	P2	Keywords:	InRadar
Version:	Safari 15
Hardware:	iPhone / iPad
OS:	Other

Description KEn 2021-10-25 06:44:10 PDT

There is an unexpected and extremly unpleasant behavior of the WebKit Web View on iPad Pro (9.7 inch) OS 15.0.2 we experienced in one of our Customers PWA. Unfortunately the Bug only appears when the App is installed on the Homescreen but not in any of the available Browsers (which all use WebKit engine on iPad OS) like Chrome or Firefox.

I created a demo repository in order to demonstrate the case in detail: https://github.com/engek1/keyboard-bug

Steps to reproduce the Problem:

1. open the example site (https://engek1.github.io/keyboard-bug/index.html) in Safari on your iPad with iOS 15
2. add the Page to the Homescreen (PWA) and open it
3. type anything into one of the Input fields on the lower part of the page (e.g. into Nr. 7)
4. then close the Soft Keyboard on your iPad with the 'close Keyboard' Button
5. try to click (without scrolling or anything) into Input field Nr. 1 for example
6. Then it comes; instead of Input Nr. 1, any of the Input Fields underneath will gain focus, for example Nr. 2 or 3 (not constantly the same)

I guess the View Port is shifted somehow when the soft keyboard dismiss. The effect is that the wrong Elements gain the User Input events.

Comment 1 Radar WebKit Bug Importer 2021-10-25 11:45:58 PDT

<rdar://problem/84623646>

Comment 2 Brent Fulgham 2022-02-10 10:11:28 PST

The fix for this issue was needed outside the WebKit project, therefore this is being resolved as 'Moved'.

This issue should be fixed now in iOS 15.2.

Comment 3 mplutka 2022-09-08 01:38:27 PDT

This issue is not fixed in iPadOS 16.1