Here is an example
when HTTP_RESPONSE {
if { [HTTP::status] contains "302"} && [string tolower [HTTP::header Location]]contains "server01" }
then {HTTP::header replace Location [string map -nocase {"server01" "www.site.com"} [HTTP::header Location]] }
elseif { [HTTP::status] contains "302" && [string tolower [HTTP::header Location]]contains "server02" }
then {HTTP::header replace Location [string map -nocase {"server02" "www.site.com"} [HTTP::header Location]] }
elseif { [HTTP::status] contains "302" && [string tolower [HTTP::header Location]]contains "server03" }
then {HTTP::header replace Location [string map -nocase {"server03" "www.site.com"} [HTTP::header Location]] }
again thanks for your help