f5 client certificate forwarding

i have website secure over F5 , it require client certificate which i need to forward it to the server. i don't f5 to validate the certifcate . just i need to pass it to sever..

i have add in ssl profile the client certificate as " require" , and i have add the root CA as Advertised Certificate Authorities because the client will use self sighn certificate .. in irule i did the below:

CLIENTSSL_CLIENTCERT { if { [SSL::cert count] > 0 } { set client_cert [X509::whole [SSL::cert 0]] set session_cert $client_cert } } when HTTP_REQUEST { if {[info exists session_cert]} { HTTP::header replace "X-Client-Cert" $session_cert }

now when i try to access the portal, certifcate popup is displayed and after choose the certifcate i got " the site can't provide a secure connection, err_ssl_protocol_error .. and in f5 i see the client certifcicate is attach to the header. 

so what might be the issue?