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      <base href="https://bugs.webkit.org/" />
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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 - REGRESSION(r207669): Crash after mutating selector text"
   href="https://bugs.webkit.org/show_bug.cgi?id=168655">168655</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>REGRESSION(r207669): Crash after mutating selector text
          </td>
        </tr>

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

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

        <tr>
          <th>Version</th>
          <td>WebKit Nightly Build
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Unspecified
          </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>CSS
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>koivisto&#64;iki.fi
          </td>
        </tr></table>
      <p>
        <div>
        <pre>&lt;style id=s&gt;
body[foo] [id=d] { color: green };
&lt;/style&gt;
&lt;body&gt;
&lt;div id=d&gt;PASS&lt;/div&gt;
&lt;script&gt;
d.offsetLeft;
s.sheet.cssRules.item(0).selectorText = &quot;body[foo]&quot;;
document.body.setAttribute(&quot;foo&quot;, &quot;foo&quot;);
&lt;/script&gt;</pre>
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      </p>
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