Mongrel users - Dec 2006 - compression + max file size upload liimit?

I am using Mongrel Cluster with Apache 2.2.3 + mod_proxy_balancer and  
would like to enable compression (assuming it improves throughtput)  
and limit file size upload. I configured mod_deflate and  
LimitRequestSize in Apache, but in my trials looks like the proxied  
calls bypass those directives (the conf goes below).

Is there a way to get this?

-- fxn


NameVirtualHost *:80

# Configure the balancer to dispatch to the Mongrel cluster.
<Proxy balancer://example_cluster>
   BalancerMember http://127.0.0.1:3001
   BalancerMember http://127.0.0.1:3002
   BalancerMember http://127.0.0.1:3003
</Proxy>

# Setup the VirtualHost for your Rails application
<VirtualHost *:80>
   ServerAdmin admin at example.com
   ServerName  www.example.com
   ServerAlias localhost

   LimitRequestSize 102400

   DocumentRoot /path/to/example/public
   <Directory ''/path/to/example/public''>
     Options FollowSymLinks
     AllowOverride None
     Order allow,deny
     Allow from all
   </Directory>

   ProxyPass / balancer://example_cluster/
   ProxyPassReverse / balancer://example_cluster/

   # Setup your Rewrite rules here
   RewriteEngine On

   # Rewrite index to check for static
   RewriteRule ^/$ /index.html [QSA]

   # Send all requests that are not found as existing files to the  
cluster
   RewriteCond %{DOCUMENT_ROOT}/%{REQUEST_FILENAME} !-f
   RewriteRule ^/(.*)$ balancer://example_cluster%{REQUEST_URI}  
[P,QSA,L]

   # Deflate
   AddOutputFilterByType DEFLATE text/html text/plain text/xml text/ 
css application/x-javascript

   # Error logs
   ErrorLog /path/to/example/log/apache_error_log
   CustomLog /path/to/example/log/apache_access_log combined
</VirtualHost>