iRule not working when HTTP cookie header exceeds certain length?

The new iRule worked great! Thank you for your help! For reference, here is the new iRule:

 

 

when HTTP_REQUEST {

 

Set the Cookie Name automatically based on the server pool name

 

set cookie_name "BIGipServer[LB::server pool]"

 

log "cookie_name $cookie_name"

 

Find the correct cookie domain dynamically based on the host in the URL.

 

set host [HTTP::host]

 

Use the substring from the first dot to the end of the string.

 

set cookie_domain [findstr $host "."]

 

Set the Cookie Domain for this site

 

log "cookie domain is $cookie_domain"

 

}

 

 

when HTTP_RESPONSE {

 

We need to rewrite the cookies used by the application, because they have the wrong domain.

 

if {[HTTP::cookie count] > 0}{

 

if {[HTTP::cookie exists "$cookie_name"]}{

 

HTTP::cookie domain $cookie_name $cookie_domain

 

log "rewriting cookie domain: cookie=$cookie_name, domain=$cookie_domain"

 

}

 

}

 

}