Log length of css file in response

Hi,

 

 

yes - I know. I wrote an iRule in my first try like this:

 

 

when HTTP_REQUEST {

 

if { [HTTP::uri] eq "/a/b/main.css" }

 

log local0. "CSS-DEBUG: [HTTP::uri]"

 

}

 

}

 

when HTTP_RESPONSE {

 

if { [HTTP::header "Content-type"] eq "text/css" }{

 

log local0. "CSS-DEBUG: Content-Length is [HTTP::header Content-Length]"

 

}

 

}

 

 

The log shows me now all Content-Length values for all css-Files delivered to the clients (there is more than one css-File on the site). How can I only log the contend length from the main.css ?