title: Access Response Headers from ASP.Net PageMethod Call
body: <p>When using ASP.Net Ajax to call PageMethods, how can I access the Http response headers from the "success" method?</p>
  
  <p>For example:</p>
  
  <pre><code>PageMethods.DoSomething(
     function(result){successMethod(result)},
     function(error){errorMethod(error)}
  );
  
  function successMethod(result){
      //------how can I access the Http response headers from here? ------
  }
  </code></pre>
  
  <p>Thanks for any help</p>