LTM 11.1.0 Cookie httponly flag TCL errors

 Set HttpOnly on all LTM and app generated cookies
when HTTP_RESPONSE {
   set cookieNames [HTTP::cookie names]
   foreach aCookie $cookieNames {
      HTTP::cookie version $aCookie 1
      HTTP::cookie httponly $aCookie enable
   }
}

 Or just for one statically defined cookie:
when HTTP_RESPONSE {
   HTTP::cookie version myCookie 1
   HTTP::cookie httponly myCookie enable
}

Jun 21 14:27:01 ve11a err tmm1[10969]: 01220001:3: TCL error: /Common/myrule  - Illegal argument (line 1)     invoked from within "HTTP::cookie version BIGipServerfoo 1"

[root@ve11a:Active:Changes Pending] config  tmsh list ltm virtual bar
ltm virtual bar {
    destination 172.28.20.16:80
    ip-protocol tcp
    mask 255.255.255.255
    persist {
        cookie {
            default yes
        }
    }
    pool foo
    profiles {
        http { }
        tcp { }
    }
    rules {
        myrule
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    vlans-disabled
}
[root@ve11a:Active:Changes Pending] config  tmsh list ltm rule myrule
ltm rule myrule {
    when HTTP_RESPONSE {
  if { [HTTP::cookie BIGipServerfoo] ne "" } {
    set ck_value [HTTP::cookie value BIGipServerfoo]
    set ck_path [HTTP::cookie path BIGipServerfoo]
    HTTP::cookie remove BIGipServerfoo
    HTTP::cookie insert name BIGipServerfoo value $ck_value path $ck_path version 1
    HTTP::cookie httponly BIGipServerfoo enable
  }
}
}

[root@ve11a:Active:Changes Pending] config  curl -I http://172.28.20.16
HTTP/1.1 200 OK
Date: Fri, 21 Jun 2013 06:58:06 GMT
Server: Apache/2.2.3 (CentOS)
Last-Modified: Thu, 23 May 2013 00:28:46 GMT
ETag: "4185a8-59-c3efab80"
Accept-Ranges: bytes
Content-Length: 89
Connection: close
Content-Type: text/html; charset=UTF-8
Set-Cookie: BIGipServerfoo=1707657416.20480.0000;HttpOnly;Path=/;Version=1;

I get the same error - illegal argument error on HTTP::cookie version. Any solution?