anchor.diff:  }
   ----
   
  -and it will (in addition to loggin the user in and grabbing a token)
  +and it will (in addition to logging the user in and grabbing a token)
   pass the authentication token downstream to the `/proxy/*`
   services. If those services are implemented with
   `@EnableOAuth2Resource` then they will get a valid token in the
  
positive.code: 
  ==== Client Token Relay
  
  If your app has a
  http://cloud.spring.io/spring-cloud.html#netflix-zuul-reverse-proxy[Spring
  Cloud Zuul] embedded reverse proxy (using `@EnableZuulProxy`) then you
  can ask it to forward OAuth2 access tokens downstream to the services
  it is proxying. Thus the SSO app above can be enhanced simply like this:
  
  .app.groovy
  [source,java]
  
negative.code:     return "Success! (" + response.getBody() + ")";
  }
  ----
  
  If you don't want to forward tokens (and that is a valid
  choice, since you might want to act as yourself, rather than the
  client that sent you the token), then you only need to create your own
  `OAuth2Context` instead of autowiring the default one. 
  
  == Configuring Authentication Downstream of a Zuul Proxy
  
  