title: JAWS does not seem to be able to identify a data table
body: <p>We have a data table in a page and we want screen reader to read that as table. NVDA reads it as a data table by default. But JAWS does not seem to be able to identify the table element and reads the text from left to right row by row without indicating it is a table. I tried adding role="grid" and it did not work. I am wondering if I miss something. </p>
  
  <p>The browser is IE11 and JAWS is 17.0.2727</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;table tabindex="0" role="grid"&gt;
    &lt;thead&gt;
      &lt;tr&gt;
        &lt;th&gt;Date&lt;/th&gt;
        &lt;th&gt;Time&lt;/th&gt;
        &lt;th aria-hidden="true"&gt;&lt;/th&gt;
        &lt;th&gt;Rate&lt;/th&gt;
        &lt;th&gt;Volume&lt;/th&gt;
      &lt;/tr&gt;
    &lt;/thead&gt;
    &lt;tbody&gt;
      &lt;tr&gt;
        &lt;td&gt;12/19/16&lt;/td&gt;
        &lt;td&gt;
          &lt;span&gt;10:50:09&lt;/span&gt; - &lt;span&gt;12/19/16&lt;/span&gt; &lt;span&gt;11:05:09&lt;/span&gt;
        &lt;/td&gt;
        &lt;td aria-hidden="true"&gt;&lt;/td&gt;
        &lt;td&gt;
          &lt;span&gt;54&lt;/span&gt;&lt;span&gt;mL/hr&lt;/span&gt;
        &lt;/td&gt;
        &lt;td&gt;
          &lt;span&gt;13.5&lt;/span&gt;&lt;span&gt;mL&lt;/span&gt;
        &lt;/td&gt;
      &lt;/tr&gt;
      &lt;tr&gt;
        &lt;td&gt;&lt;/td&gt;
        &lt;td&gt;
            &lt;span&gt;11:05:09&lt;/span&gt; - &lt;span&gt;12/19/16&lt;/span&gt;&lt;span&gt;11:20:09&lt;/span&gt;
        &lt;/td&gt;
        &lt;td aria-hidden="true"&gt;&lt;/td&gt;
        &lt;td&gt;
          &lt;span&gt;48&lt;/span&gt;&lt;span&gt;mL/hr&lt;/span&gt;
        &lt;/td&gt;
        &lt;td&gt;
            &lt;span&gt;12&lt;/span&gt;&lt;span&gt;mL&lt;/span&gt;
        &lt;/td&gt;
      &lt;/tr&gt;
    &lt;/tbody&gt;
  &lt;/table&gt;</code></pre>
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