X-SSL header value

so, is the problem bigip does not insert the header or something else?

request header insert setting looks fine here in my lab.

 config

root@(ve11c)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm virtual bar
ltm virtual bar {
    destination 172.28.24.10:80
    ip-protocol tcp
    mask 255.255.255.255
    pool foo
    profiles {
        myhttp { }
        tcp { }
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    vs-index 19
}
root@(ve11c)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm pool foo
ltm pool foo {
    members {
        200.200.200.101:80 {
            address 200.200.200.101
        }
    }
}
root@(ve11c)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm profile http myhttp
ltm profile http myhttp {
    app-service none
    header-insert X-SSL:decrypted=true,ciphers=TLSv1/SSLv3_RC4-MD5
}

 trace

[root@ve11c:Active:In Sync] config  ssldump -Aed -nni 0.0 port 80
New TCP connection 1: 192.168.206.47(56746) <-> 172.28.24.10(80)
1427023101.6994 (0.0024)  C>S
---------------------------------------------------------------
GET / HTTP/1.1
Host: 172.28.24.10
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Connection: keep-alive

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

New TCP connection 2: 200.200.200.14(56746) <-> 200.200.200.101(80)
1427023101.7005 (0.0010)  C>S
---------------------------------------------------------------
GET / HTTP/1.1
Host: 172.28.24.10
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Connection: keep-alive
X-SSL: decrypted=true,ciphers=TLSv1/SSLv3_RC4-MD5

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