Apache2 & vary header: Made IE not able to cache images on subdomain

howard chen howachen at gmail.com
Sun Apr 19 06:42:14 UTC 2009


Can anyone can check for me if your apache2 on ubuntu 8.10 did sent
out the "Vary=Host" header?

If yes, this will lead to IE not able to cache the images if it is
served from subdomain.

Even thought I am using IE7, Firefox and Opear don't have this problem.

If yes, then I would report a bug.

p.s I have mod_deflate, mod_ssl, mod_php, mod_python, mod_expire.
(which is quite common)


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