Re-write works with one URI but the other

when HTTP_REQUEST {

 

switch -glob [HTTP::uri] {

 

"/a22/O/cd/wd" {

 

set xyz [HTTP::header "abc"]

 

HTTP::uri [string map "/a22/O /a22/$abc" [HTTP::uri]]

 

pool p_rewrite }

 

"/v1_0/O/cd" {

 

set xyz [HTTP::header "abc"]

 

HTTP::uri [string map "/a22/O /a22/$abc" [HTTP::uri]]

 

pool p_rewrite }

 

default {

 

pool p_nonrewrite }

 

}

 

}

 

 

The second one (/a22/O/cd) works as expected and the user is routed to the correct Pool. In the first case (/a22/O/cd/wd) it does not work. Note that the Pool (p_rewrite) is the same in both cases.