[jQuery] Unseting http headers in ajax requests

[Clodoaldo]

When doing ajax requests I  would like to not send Cookie headers to
minimize lag. I didn't find how to unset the Cookie header as there is
no XMLHttpRequest.unsetRequestHeader() method.

This is what I would like to do (obviously not possible):

jQuery.ajaxSetup({beforeSend:function(xhr){xhr.unsetRequestHeader
('Cookie');}});

Any ideas?

Regards, Clodoaldo