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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - AX: VoiceOver does not distinguish <mfrac> with / without bar"
href="https://bugs.webkit.org/show_bug.cgi?id=146454">146454</a>
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<th>Summary</th>
<td>AX: VoiceOver does not distinguish <mfrac> with / without bar
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<th>Classification</th>
<td>Unclassified
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<th>Product</th>
<td>WebKit
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<th>Version</th>
<td>528+ (Nightly build)
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<th>Hardware</th>
<td>All
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>Normal
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>Accessibility
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>fred.wang@free.fr
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<th>CC</th>
<td>webkit-bug-importer@group.apple.com
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<pre>In <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - AX: Need to get line thickness from fraction on web"
href="show_bug.cgi?id=113720">bug 113720</a>, an attribute NSAccessibilityMathLineThicknessAttribute was added to AXMathFraction to help distinguishing fractions that have a bar or not.
Compare data:text/html,<math><mrow><mo>(</mo><mfrac><mi>a</mi><mi>p</mi></mfrac><mo>)</mo></mrow></math>
(<a href="https://en.wikipedia.org/wiki/Legendre_symbol">https://en.wikipedia.org/wiki/Legendre_symbol</a>)
with data:text/html,<math><mrow><mo>(</mo><mfrac linethickness="0px"><mi>n</mi><mi>k</mi></mfrac><mo>)</mo></mrow></math>
(<a href="https://en.wikipedia.org/wiki/Combination">https://en.wikipedia.org/wiki/Combination</a>)
However, VoiceOver does not distinguish the two cases, it always read "fraction start ... over ... end of fraction".
I think it should instead read the one with linethickness="0px" as "fraction without bar start ... over ... end of fraction", "stack start ... over .. end of stack" or something similar.</pre>
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