Help with String map

I am having issues with the " string map " command when using variables in the map section of the command.

 

 

Notice how the command logs the correct string when there is just text in the mapping setion....

 

 

 

 

ex.

 

 

 

if {[HTTP::is_redirect]}{

 

 

set find ":25620/"

 

 

set replace "/"

 

 

set location [HTTP::header value Location]

 

 

HTTP::header replace Location [string map { $find $replace} $location]

 

 

log [string map {$find $replace} $location]

 

 

log [string map { ":25620/" "/"} $location]

 

 

}

 

}

 

 

 

Jan 30 09:58:43 tmm tmm[1385]: 01220002:6: Rule lng-ln-cert-certlexisgw.lexis.com-http : http://www.test.com:25620/hbeat/

 

 

Jan 30 09:58:43 tmm tmm[1385]: 01220002:6: Rule lng-ln-cert-certlexisgw.lexis.com-http : http://www.test.com/hbeat/