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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - AX: Improve interaction inside MathML table"
   href="https://bugs.webkit.org/show_bug.cgi?id=146502">146502</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>AX: Improve interaction inside MathML table
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>528+ (Nightly build)
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Accessibility
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>fred.wang&#64;free.fr
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>webkit-bug-importer&#64;group.apple.com
          </td>
        </tr></table>
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        <pre>Steps:

- Open <a href="https://mdn.mozillademos.org/en-US/docs/Mozilla/MathML_Project/MathML_Torture_Test$samples/MathML_Torture_Test">https://mdn.mozillademos.org/en-US/docs/Mozilla/MathML_Project/MathML_Torture_Test$samples/MathML_Torture_Test</a> and move to the MathML test 24.
- Press Control-Option-Shift Down Arrow to start interacting with the &lt;math&gt; element.
- You can now navigate inside the MathML expression. Move to the &lt;mtable&gt; element.
- Press Control-Option-Shift Down Arrow to start interacting with the &lt;mtable&gt; element. You can now select each &lt;mtr&gt; row.
- Press Control-Option-Shift Down Arrow to start interacting with one &lt;mtr&gt; row. You can now navigate inside the &lt;mtd&gt; cell of this row.

Actual results:
- To navigate vertically inside the &lt;mtable&gt;, you need to select an &lt;mtr&gt; and move vertically.
- To navigate horizontally inside the &lt;mtable&gt;, you need to select one &lt;mtd&gt; and move horizontally. You can only move to the cells in the same row.

Expected results:
- It should be possible to navigate in any direction inside the &lt;mtable&gt; element, just like for HTML &lt;table&gt;

Note 1: I suspect this is first a WebKit bug, we need to expose the appropriate semantics. AFAIK, &lt;mtable&gt; do not expose the same attributes as standard &lt;table&gt;.
Note 2: As a comparison, Orca development version supports navigation inside &lt;mtable&gt; the same as for HTML &lt;table&gt;.</pre>
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