“token de la X-Auth” Código de respuesta

token de la X-Auth

The x-auth-token is a header field used by a server to send 
an access token to the client (e.g. a browser). 

This step requires that the client has supplied its credentials 
(username/password) beforehands.

The x-auth-token header filed is a non-standard field 
(hence the x- prefix).