title: cross-origin header in IE8/IE9
body: <p>Since jQuery ajax ist not working for CORS/IE, I'm using <code>XDomainRequest</code> to retreive data from another Server. Work's fine, but I would like to send some header ('Authentification', 'content-type').</p>
  
  <p>Is there a chance to add/change header in XDomainRequest?</p>
  
  <p>Or does someone know a workaround?</p>