title: Sending credentials with cross-domain posts?
body: <p>According to <a href="https://developer.mozilla.org/en/HTTP_access_control#Requests_with_credentials" rel="noreferrer">Requests with credentials</a>, Firefox will only send credentials along with cross-domain posts if </p>
  
  <p><code>invocation.withCredentials = "true";</code> </p>
  
  <p>is set… But it doesn't seem like jQuery's Ajax API provides any mechanism for this.</p>
  
  <p>Is there something I've missed? Is there some other way I can do it?</p>