[Webkit-unassigned] [Bug 54358] New: VoiceOver on the iPad does not speak math tags in MathML

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=54358

           Summary: VoiceOver on the iPad does not speak math tags in
                    MathML
           Product: WebKit
           Version: 420+
          Platform: Other
        OS/Version: Other
            Status: UNCONFIRMED
          Severity: Major
          Priority: P2
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: john.gardner at comcast.net
                CC: cfleizach at apple.com


MathML islands are permitted to have an alternate text attribute.  DAISY (Digital Accessible Information SYstem www.daisy.org) specifies that “[t]he alttext value should unambiguously describe the mathematical expression.”  ViewPlus is developing practical methods for making sure that this text in DAISY-compliant documents is actually spoken by screen readers. We are adding an aria-label attribute either on the root MathML element or wrapping it in a <span>. For example:
  <span aria-label=”y equals m x plus b”>
    <math role=”presentation” alttext=”y equals m x plus b”>
      <!-- MathML here -->
    </math>
  </span> 
In Firefox for Windows, the JAWS and Window-Eyes screen readers speak that text under all practical methods by which the MathML can be displayed – either natively or by MathJAX.  The NVDA screen reader presently does not work, and we have contacted the developers with a request to fix NVDA.  We find that VoiceOver also does not acknowledge the aria-label, and we respectfully request that VoiceOver be fixed so that it does speak it correctly.  I attach an example.

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