F5 iRule to Secure Cookie with HTTPOnly and Secure but not contains cookie name="cnlfsid"

Try this modified version:

when HTTP_RESPONSE {
    foreach x [HTTP::cookie names] {
        if { $x equals "cnlfsid" } {
            continue
        }
        set ckname $x
        set ckvalue [HTTP::cookie value $x] 
        set ckpath [HTTP::cookie $x path]
        HTTP::cookie remove $x
        HTTP::cookie insert name $ckname value $ckvalue path $ckpath version 1
        HTTP::cookie secure $ckname enable
        HTTP::cookie httponly $ckname enable
    }
}

.