(@ user-session session-string .header +-
    _tpl[
            Set-Cookie: session="(/ {string} session /)"; domain="(/ {string} domain-name /)"; path=/
        ] 
        (%
            `WS_DOMAIN_NAME .domain-name
            session-string  .session
        )
        (@ x +-
            (x .header)
        )
)
