How to ignore Some HTTP get on a page

[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 pool foo list
pool foo {
   members 200.200.200.101:80 {}
}
[root@ve10:Active] config  b rule myrule list
rule myrule {
   when HTTP_REQUEST {
   if {[HTTP::uri] equals "/hugefile.jpg"} {
      HTTP::respond 200 content ""
   }
}
}

 on client

 curl -i http://172.28.19.79/hugefile.jpg
HTTP/1.0 200 OK
Server: BigIP
Connection: Keep-Alive
Content-Length: 0

 tcpdump on bigip i.e. no connection to pool

[root@ve10:Active] config  ssldump -Aed -nni 0.0 port 80
New TCP connection 1: 172.28.19.251(37066) <-> 172.28.19.79(80)
1342056660.8829 (0.0011)  C>S
---------------------------------------------------------------
GET /hugefile.jpg HTTP/1.1
User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5
Host: 172.28.19.79
Accept: */*

---------------------------------------------------------------

1342056660.8830 (0.0000)  S>C
---------------------------------------------------------------
HTTP/1.0 200 OK
Server: BigIP
Connection: Keep-Alive
Content-Length: 0

---------------------------------------------------------------

1    1342056660.8846 (0.0016)  C>S  TCP FIN
1    1342056660.8846 (0.0000)  S>C  TCP FIN