[Webkit-unassigned] [Bug 172913] New: AX: Text jumps during swiping right through the web page

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=172913

            Bug ID: 172913
           Summary: AX: Text jumps during swiping right through the web
                    page
           Product: WebKit
           Version: Safari 10
          Hardware: iPhone / iPad
                OS: iOS 10
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Accessibility
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: daria.s.mitina at gmail.com
                CC: webkit-bug-importer at group.apple.com

Created attachment 311994

  --> https://bugs.webkit.org/attachment.cgi?id=311994&action=review

simple HTML code that I used to test

Overview:
When I start swiping right in the browser through the page it starts occasionally jumping. I can reproduce this issue only in the landscape mode and never in the portrait mode. Moreover, this happens only on iPad with iOS version 10.3.2 whereas I cannot reproduce this on iPad with iOS version 8.2. This issue is reproduced on different web sites.

Steps to Reproduce:
1) To reproduce this issue, please, open the attached simple HTML page
2) Turn on Voiceover and turn your iPad in the landscape mode.
3) Start swiping right to go through elements on the page
4) Observe that the page starts jumping. Go on swiping and set the focus on the right button. Try to double tap it and observe that nothing happens. (This last step can depend on the size of your device - on my device interactive elements shift beyond the screen during this page jumping and then they stop working.) 

Expected Results:
The page doesn't jump

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