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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Web Inspector: Some CSS selectors in the UI aren't escaped"
   href="https://bugs.webkit.org/show_bug.cgi?id=151378">151378</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Web Inspector: Some CSS selectors in the UI aren't escaped
          </td>
        </tr>

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

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

        <tr>
          <th>Version</th>
          <td>WebKit Local 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>Web Inspector
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>nvasilyev&#64;apple.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>bburg&#64;apple.com, graouts&#64;webkit.org, joepeck&#64;webkit.org, mattbaker&#64;apple.com, nvasilyev&#64;apple.com, timothy&#64;apple.com, webkit-bug-importer&#64;group.apple.com
          </td>
        </tr>

        <tr>
          <th>Depends on</th>
          <td>126337
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=265729" name="attach_265729" title="[Image] Bug">attachment 265729</a> <a href="attachment.cgi?id=265729&amp;action=edit" title="[Image] Bug">[details]</a></span>
[Image] Bug

This is a valid HTML with a valid id name:

    &lt;div id=&quot;#id.class&quot;&gt;

To match this id using CSS, I'd have to escape it:

    #\#id\.class

We escape CSS selectors in some parts of Web Inspector's UI and we don't in some others.

More on this: <a href="https://mothereff.in/css-escapes#0%23id.class">https://mothereff.in/css-escapes#0%23id.class</a></pre>
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