Ltm v10.2 Remove HttpOnly from cookie

[root@ve10: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@ve10:Active] config  b rule myrule list
rule myrule {
   when HTTP_RESPONSE {
   if {[HTTP::header exists "Set-Cookie"]}{
      foreach a_set_cookie_value [HTTP::header values "Set-Cookie"] {
         log local0. "[IP::client_addr]:[TCP::client_port]: Current Set-Cookie value: $a_set_cookie_value, \
         updated value [string map -nocase {"; HttpOnly" ""} $a_set_cookie_value]"
         HTTP::header replace "Set-Cookie" [string map -nocase {"; HttpOnly" ""} $a_set_cookie_value]
      }
   }
 }
}

 on client

[root@centos251 ~] curl -I http://172.28.19.79
HTTP/1.1 200 OK
Date: Mon, 08 Oct 2012 16:59:12 GMT
Server: Apache/2.2.3 (CentOS)
Last-Modified: Fri, 11 Nov 2011 14:48:14 GMT
ETag: "4183e4-3e-9c564780"
Accept-Ranges: bytes
Content-Length: 62
Set-Cookie: JSESSIONID=PppHQh1V51nRpcH0QJJNsldV0sjLcFKzndTd2PhGMKNp20nHprzd!1975339553; path=/
Connection: close
Content-Type: text/html; charset=UTF-8

 on bigip

[root@ve10:Active] config  tail -f /var/log/ltm
Oct  9 00:42:41 local/tmm info tmm[31087]: Rule myrule : 172.28.19.251:42446: Current Set-Cookie value: JSESSIONID=PppHQh1V51nRpcH0QJJNsldV0sjLcFKzndTd2PhGMKNp20nHprzd!1975339553; path=/; HttpOnly,  updated value JSESSIONID=PppHQh1V51nRpcH0QJJNsldV0sjLcFKzndTd2PhGMKNp20nHprzd!1975339553; path=/