[Webkit-unassigned] [Bug 173661] New: AX: Random field focus with VoiceOver on iOS makes it very difficult to fill in forms

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=173661

            Bug ID: 173661
           Summary: AX: Random field focus with VoiceOver on iOS makes it
                    very difficult to fill in forms
           Product: WebKit
           Version: Safari 10
          Hardware: iPhone / iPad
                OS: iOS 10.3
            Status: NEW
          Severity: Major
          Priority: P2
         Component: Accessibility
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: anika.henke at digital.cabinet-office.gov.uk
                CC: webkit-bug-importer at group.apple.com

When filling in any form with multiple fields with VoiceOver on iOS, the fields cannot be filled in one by one due to bad virtual focus management, making it highly likely that a couple will be missed.

Steps to reproduce:
1. Open Safari on an iOS device
2. Open http://jsbin.com/kuzizaw (reduced test case)
3. Activate VoiceOver
4. Fill in the first input
5a. Activate the "done" button
6a. Repeat until the end of the form

Alternatively:
5b. Hit the "forward" button
6b. Repeat until the end of the form

Result:
In the first scenario some random field will receive the virtual focus, skipping a couple of fields.
In the second scenario the next field will receive the virtual focus, except that radio buttons and checkboxes will be skipped.

Expected:
In both scenarios the next field (irrespective of type) should receive the focus. Or giving the current field the focus would also make sense.

Why is this a problem?
Screen reader users who cannot see the form have no way of knowing that some fields have been skipped. They cannot rely on standard ways of filling in a form. The only way for them to know is by going through the whole form after filling it in to make sure they haven't missed anything.
It is possible to fill in a form this way, but very, very annoying and much more time-consuming than necessary.

One discussion about this bug can be found here: http://webaim.org/discussion/mail_thread?thread=7141
Someone mentioned on there that they filed a bug report but I searched and couldn't find anything.
As far as I know it happens at least on iOS9 and iOS10.

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