[Mod_gzip] mod_gzip, multiple VirtualHosts and mod_ssl.

[Erik Enge]

Hey all.

I've read the previous posts about this very same subject, but I'm not
able to figure out what I'm doing wrong.

We have users request ourdomain:2000 over HTTP.  Then we Redirect them
to https://ourdomain:2001.  At ourdomain:2001 I have a VirtualHost which
ProxyPasses everything to http://ourdomain:2002 (a Zope instance).

I want mod_gzip to compress traffic between the user and our Apache
box.  My current configuration is:

  mod_gzip_on Yes
  mod_gzip_minimum_file_size  300
  mod_gzip_maximum_file_size  0
  mod_gzip_maximum_inmem_size 100000
  mod_gzip_dechunk Yes
  
  mod_gzip_item_include mime ^text/*
  mod_gzip_item_include mime httpd/unix-directory
  mod_gzip_item_include file \.htm$
  mod_gzip_item_include file \.html$
  mod_gzip_item_include handler proxy-server
  mod_gzip_item_include handler cgi-script
  
  mod_gzip_item_exclude rspheader Content-Type:image/*
  mod_gzip_item_exclude mime text/css
  mod_gzip_item_exclude file \.css$
  mod_gzip_item_exclude file \.js$

However, what I get in the log files are typically things like:

  192.168.1.2 - - [03/Oct/2002:14:01:31 -0400] "GET / HTTP/1.1" 304 - mod_gzip: SEND_AS_IS:NO_200 In:0 Out:0:0pct.
  192.168.1.2 - - [03/Oct/2002:14:01:54 -0400] "GET / HTTP/1.1" 302 0 mod_gzip: CAP_FILE_EMPTY In:0 Out:0:0pct.
  192.168.1.3 - - [03/Oct/2002:14:04:46 -0400] "GET / HTTP/1.0" 200 10792 mod_gzip: DECLINED:NO_ACCEPT_ENCODING In:0 Out:0:0pct.

I guess the last one is because mod_gzip only works with HTTP/1.1 and
that's fine.  However, I would expect the first and the second ones to
have compressed the / document.  Why isn't arent't they being
compressed?

Thanks for any pointers,

Erik Enge.