Bug 262190

Summary:

REGRESSION (iOS 17): Safari webview app crashes when input element is focused when using Automatic Assessment Configuration

Product:

WebKit

Reporter:

Garrett Mills (AllofE Solutions) <gmills>

Component:

UI Events

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED INVALID

Severity:

Normal

CC:

webkit-bug-importer

Priority:

Keywords:

InRadar

Version:

Safari 17

Hardware:

iPhone / iPad

OS:

iOS 17

Attachments:

Description	Flags
ipad-console-logs.txt	none

Description Garrett Mills (AllofE Solutions) 2023-09-27 08:45:04 PDT

We maintain an app that uses Automatic Assessment Configuration and WebKit, and have encountered a bug in iOS 17 that causes the app to crash when an input element is focused in AAC mode.

In the console, we see the following error, which may or may not be related:

```
RTIInputSystemClient remoteTextInputSessionWithID:performInputOperation:]  perform input operation requires a valid sessionID.
```

This error message appears when touching an input field even when there is no crash. We've tried various "fixes" like removing our non-HTML input elements and disabling auto-complete. None of them prevented the crashing behavior.

The crash only occurs when the AAC session has started. We were able to create a minimally-reproducing example app that loads a bit of static HTML:

https://github.com/AllofESolutions/aac-crash-example

(We were using an iPad Pro 5th-Generation running iOS 17.0.1 for testing.)

Has anyone else encountered this issue? Is there any work-around?

Comment 1 Alexey Proskuryakov 2023-09-27 17:59:23 PDT

Could you please attach a crash log (https://developer.apple.com/documentation/xcode/acquiring-crash-reports-and-diagnostic-logs)? 

I understand that we can build the provided app, however this would be easier to triage with a crash log.

Comment 2 Radar WebKit Bug Importer 2023-09-27 17:59:32 PDT

<rdar://problem/116151953>

Comment 3 Garrett Mills (AllofE Solutions) 2023-09-28 10:31:58 PDT

Created attachment 467960 [details]
ipad-console-logs.txt

Here are the console logs from a few second period when I reproduced the issue. Check near timestamps 12:12:33 and 12:12:45. Searching for the bundle identifier (or "AllofE.AacExample") should work.

Comment 4 Garrett Mills (AllofE Solutions) 2023-09-28 10:33:15 PDT

Meant to say that, because of the way the crash happens, no crash log is written in Xcode or the system settings analytics logs.

Comment 5 Garrett Mills (AllofE Solutions) 2023-10-06 08:39:09 PDT

Any luck on this? We have been unable to find a suitable workaround due to the lower-level nature of the crash.

Comment 6 Alexey Proskuryakov 2023-10-15 12:10:10 PDT

This issue was not in WebKit, but in a different system framework. It's fixed in iOS 17.1 beta 3.