title: Can't get jqTree to load data from URL
body: <p>Not sure what I'm doing wrong, but jqTree refuses to show up when I attempt to use dataUrl.</p>
  
  <p>Looking in Chrome dev tools network tab, I can see that the js file is loaded, but even with the simplest bit of <code>JSON</code>, it won't build out a tree.</p>
  
  <pre><code>$('#tree1').tree({
      dataUrl: 'data.js'
  });
  </code></pre>
  
  <p>Contents of <code>data.js</code>:</p>
  
  <pre><code>{
      label: 'node1',
      children: [
          { label: 'child1' },
          { label: 'child2' }
      ]
  },
  {
      label: 'node2',
      children: [
          { label: 'child3' }
      ]
   }
  </code></pre>
  
  <p>Any suggestions?  Is there some formatting issue with my JSON that I'm not seeing?</p>