node/prefix/element-xmlnsuri-xmlns-undefined.html

<!DOCTYPE html><html><head>
      <title>Element.prefix = undefined</title>
    </head><body>
      <p id="result" class="FAIL">FAIL (not executed)</p>
      <script type="text/javascript">// <![CDATA[
        var result = document.getElementById ('result');
        result.firstChild.data = 'FAIL (script error)';
        
      var el;
      try {
        el = document.createAttributeNS ("http://www.w3.org/2000/xmlns/", "xmlns");
      } catch (e) { }
      if (!el) {
        try {
          el = document.createAttributeNS ("http://www.w3.org/2000/xmlns/", "xmlns");
          el.prefix = null;
        } catch (e) { }
      }
      var ok = (el && el.prefix == null &&
                el.namespaceURI == "http://www.w3.org/2000/xmlns/");
    
        if (ok) {
          try {
            el.prefix = undefined;
            result.className = '';
            result.firstChild.data = el.prefix + ', type ' + typeof (el.prefix);
          } catch (e) {
            result.className = '';
            result.firstChild.data = e.toString ();
          }
        } else {
          result.classNam
1	<!DOCTYPE html><html><head>
2	<title>Element.prefix = undefined</title>
3	</head><body>
4	<p id="result" class="FAIL">FAIL (not executed)</p>
5	<script type="text/javascript">// <![CDATA[
6	var result = document.getElementById ('result');
7	result.firstChild.data = 'FAIL (script error)';
8
9	var el;
10	try {
11	el = document.createAttributeNS ("http://www.w3.org/2000/xmlns/", "xmlns");
12	} catch (e) { }
13	if (!el) {
14	try {
15	el = document.createAttributeNS ("http://www.w3.org/2000/xmlns/", "xmlns");
16	el.prefix = null;
17	} catch (e) { }
18	}
19	var ok = (el && el.prefix == null &&
20	el.namespaceURI == "http://www.w3.org/2000/xmlns/");
21
22	if (ok) {
23	try {
24	el.prefix = undefined;
25	result.className = '';
26	result.firstChild.data = el.prefix + ', type ' + typeof (el.prefix);
27	} catch (e) {
28	result.className = '';
29	result.firstChild.data = e.toString ();
30	}
31	} else {
32	result.classNam