title: Access page header of the current page in javascript [no ajax]
body: <p>How can I view the page headers of the loaded page using javascript.</p>
  
  <p>Is there something where I can execute a </p>
  
  <pre><code>e.g. window.pageHeaders['session']
  </code></pre>
  
  <p>Note: I am not talking about a Ajax page load.</p>