Hello, Since I am using mod_deflate to compress resources (js, html) But it also give me Vary: Host for images resources, this is okay. But I found that now if the images is served from subdomain, it will not be cached by IE7 (by looking at the Temporary Internet Files folder) Now I have no method but to unset the vary , e.g. Header unset Vary Then caching is back for IE7. Any better or correct method? Thanks. --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx