To be sure, I run a head command from bash:
# HEAD http://smut-site.com/expire/
Cache-Control: public, must-revalidate, max-age=86400
Date: Wed, 03 Dec 2003 19:39:20 GMT
Server: Apache/1.3.29 (Unix) mod_gzip/126.96.36.199a mod_auth_passthrough/1.8 mod_log_bytes/1.2 mod_bwlimited/1.2 FrontPage/188.8.131.5234 mod_ssl/2.8.16 OpenSSL/0.9.6b PHP-CGI/0.1b
Content-Type: text/html Expires: Thu, 04 Dec 2003 19:39:20 GMT
Last-Modified: Tue, 02 Dec 2003 23:59:37 GMT
Client-Date: Wed, 03 Dec 2003 19:39:18 GMT
Yup, appears to be working. Let me make sure the image is cached as well.
Expires: Thu, 04 Dec 2003 19:40:02 GMT
Last-Modified: Tue, 02 Dec 2003 22:05:00 GMT
Yup, that works.
Testing it in IE, it isn't caching the images. Any reason why? What am I missing here.