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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Popup boxes (alert, confirm, prompt) have no content"
   href="https://bugs.webkit.org/show_bug.cgi?id=164371">164371</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Popup boxes (alert, confirm, prompt) have no content
          </td>
        </tr>

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

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

        <tr>
          <th>Version</th>
          <td>Safari Technology Preview
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Macintosh
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>macOS 10.12
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>Major
          </td>
        </tr>

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

        <tr>
          <th>Component</th>
          <td>New Bugs
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>lorp&#64;lorp.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=293776" name="attach_293776" title="alert box without content">attachment 293776</a> <a href="attachment.cgi?id=293776&amp;action=edit" title="alert box without content">[details]</a></span>
alert box without content

Popup boxes (alert, confirm, prompt) have no content. Typing from the console the following…

alert (&quot;hello&quot;);
confirm(&quot;Are you sure?&quot;);
prompt(&quot;Please enter your name&quot;, &quot;Harry Potter&quot;);

The first two result in empty popups, the third results in a popup with only the default text (&quot;Harry Potter&quot;) displayed.</pre>
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      </p>
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