[Mod_gzip] "mod_gzip_send_vary=Yes" disables caching on IE? (1.3.26.1a)

[Jordan Russell]

Slava Bizyayev wrote:
> I was lucky to demonstrate that Vary works fine (with M$IE)
> even when you need to cache content locally. Apache::Dynagzip is using
this
> approach effectively.

I checked the Apache::Dynagzip source code (I don't have mod_perl to test)
and it appears that it only sends a Vary header when sending gzipped
content. (Am I right?)

> That was very similar issue with mod_deflate.

I checked the mod_deflate and also the PHP source code and it appears they
do it the same way -- no Vary header unless sending gzipped content.

So it seems mod_gzip is alone in its sending of Vary headers for both
gzipped and non-gzipped content?

Jordan Russell