title: DOJO ContentPane.set("href", "..." ) not loading content
body: <p>I have a ContentPane defined as follows:</p>
  
  <pre><code>&lt;div id="searchResultsContentPane" data-dojo-type="dijit.layout.ContentPane" data-dojo-props='splitter:false, region:"center"'&gt;&lt;/div&gt;
  </code></pre>
  
  <p>I am trying to dynamically set the href when a button in another ContentPane is pressed:</p>
  
  <pre><code>var searchResultsContentPane = dijit.byId("searchResultsContentPane");
  searchResultsContentPane.set("href", "modules/content_panes/callrecords.php");
  </code></pre>
  
  <p>For some reason this doesn't seem to be working.  The content pane flashes loading then goes back to white and FireBug doesn't give me usable info.  This is all it shows:</p>
  
  <p><img src="https://i.stack.imgur.com/zOlLT.png" alt="enter image description here"></p>
  
  <p>If you cant read that it says in red: </p>
  
  <blockquote>
    <p>GET <a href="http://cdr.homelinux.net:10001/Mike/modules/content_panes/callrecords.php" rel="nofollow noreferrer">http://cdr.homelinux.net:10001/Mike/modules/content_panes/callrecords.php</a></p>
  </blockquote>
  
  <p>callrecords.php loads just fine if I set it with html as a data-dojo-props property.</p>
  
  <p>Thanks</p>