title: JS not working in popup window
body: <pre><code>chrome.app.runtime.onLaunched.addListener(function() {
  chrome.app.window.create('testcb.html', {
  'bounds': {
    'width': 1240,
    'height': 720
      }
    });
  }); 
  </code></pre>
  
  <p>That opens </p>
  
  <pre><code>&lt;script type="text/javascript" src="libs/jquery-1.9.1.min.js"&gt;&lt;/script&gt;
  &lt;script type="text/javascript" src="cb.js"&gt;&lt;/script&gt;
  
  &lt;link rel="stylesheet" type="text/css" href="css/design.css"/&gt;
  &lt;link rel="icon" type="image/png" href="favicon.png"/&gt;
  </code></pre>
  
  <p>The java script does not work whatsoever. I'm entirely new at making extensions/apps. And full explanation is needed. </p>