inserting X-Origin-Host heade when using catch command

[root@ve1023:Active] config  b virtual bar list
virtual bar {
   snat automap
   pool foo
   destination 172.28.19.79:80
   ip protocol 6
   rules myrule
   profiles {
      http {}
      tcp {}
   }
}
[root@ve1023:Active] config  b pool foo list
pool foo {
   members 200.200.200.101:80 {}
}
[root@ve1023:Active] config  b pool foopool list
pool foopool {
   members 200.200.200.102:80 {}
}
[root@ve1023:Active] config  b rule myrule list
rule myrule {
   when HTTP_REQUEST {
        if {[class match -- [string toupper [HTTP::host]] starts_with WWW-PREIMP.FOO.CA-PATHREDIR]} {
                HTTP::respond 301 Location "http://www.[HTTP::host]"

        } elseif {[class match -- [string toupper [HTTP::uri]] starts_with WWW-PREIMP.FOO.CA-URIREDIR]} {
                HTTP::uri "/"
        }

        if {[class match -- [string toupper [HTTP::uri]] starts_with FOO.CA-REDIR]} {
                catch {HTTP::header insert lws X-Origin-Host [HTTP::host]}
                catch {pool [class match -value [string toupper [HTTP::uri]] starts_with FOO.CA-REDIR]}
        }
}
}
[root@ve1023:Active] config  b class WWW-PREIMP.FOO.CA-PATHREDIR list
class WWW-PREIMP.FOO.CA-PATHREDIR {
   "ABC.COM"
}
[root@ve1023:Active] config  b class WWW-PREIMP.FOO.CA-URIREDIR list
bclass WWW-PREIMP.FOO.CA-URIREDIR {
   "/TEST"
}
[root@ve1023:Active] config  b class FOO.CA-REDIR list
class FOO.CA-REDIR {
   "/FOO" { "foopool" }
}

1

[root@ve1023:Active] config  curl -I http://abc.com/abc
HTTP/1.0 301 Moved Permanently
Location: http://www.abc.com
Server: BigIP
Connection: Keep-Alive
Content-Length: 0

2

[root@ve1023:Active] config  ssldump -Aed -nni 0.0 port 80
New TCP connection 1: 172.28.19.253(45755) <-> 172.28.19.79(80)
1322048483.6894 (0.0031)  C>S
---------------------------------------------------------------
HEAD /test/abc HTTP/1.1
User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8r zlib/1.2.3 libidn/0.6.5
Host: www.abc.com
Accept: */*
---------------------------------------------------------------

New TCP connection 2: 200.200.200.10(45755) <-> 200.200.200.101(80)
1322048483.6904 (0.0009)  C>S
---------------------------------------------------------------
HEAD / HTTP/1.1
User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8r zlib/1.2.3 libidn/0.6.5
Host: www.abc.com
Accept: */*
---------------------------------------------------------------

3

[root@ve1023:Active] config  ssldump -Aed -nni 0.0 port 80
New TCP connection 1: 172.28.19.253(47562) <-> 172.28.19.79(80)
1322048588.1531 (0.0019)  C>S
---------------------------------------------------------------
HEAD /foo/abc HTTP/1.1
User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8r zlib/1.2.3 libidn/0.6.5
Host: www.abc.com
Accept: */*
---------------------------------------------------------------

New TCP connection 2: 200.200.200.10(47562) <-> 200.200.200.102(80)
1322048588.1553 (0.0010)  C>S
---------------------------------------------------------------
HEAD /foo/abc HTTP/1.1
User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8r zlib/1.2.3 libidn/0.6.5
Host: www.abc.com
Accept: */*
X-Origin-Host: www.abc.com
---------------------------------------------------------------