irldonalb - 11:03 am on Apr 22, 2010 (gmt 0)
That is way beyond crazy.
It's a complex ecommerce site with various web servers, application servers, app instances and other pieces of hardware I don't get.
Header Response is sent by one of the web servers and the application server calculates what content to display. (or something like that).
So headers are sent by the time we know it’s an expired page