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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 - iframe srcdoc with quirky doctype should be no-quirks mode"
   href="https://bugs.webkit.org/show_bug.cgi?id=159489">159489</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>iframe srcdoc with quirky doctype should be no-quirks mode
          </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>HTML DOM
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>zcorpan&#64;gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>cdumez&#64;apple.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre><a href="http://software.hixie.ch/utilities/js/live-dom-viewer/saved/4303">http://software.hixie.ch/utilities/js/live-dom-viewer/saved/4303</a>

&lt;iframe srcdoc=&quot;&lt;!doctype x&gt;&quot;&gt;

The srcdoc document should always be in no-quirks mode, regardless of the doctype. In WebKit if there's a quirky doctype it triggers quirks mode.

<a href="https://html.spec.whatwg.org/multipage/syntax.html#the-initial-insertion-mode">https://html.spec.whatwg.org/multipage/syntax.html#the-initial-insertion-mode</a></pre>
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