title: Spring Cloud Zuul gateway 401 basic authentication
body: <p>I'm working on a Spring Cloud Zuul gateway to put in front of my spring boot application. 
  I use basic authorization on the applications side.
  When I do a call to the gateway with the proper authorization header I always get 401 Unauthorized </p>
  
  <pre><code>"status": 401,
  "error": "Unauthorized",
  "message": "Full authentication is required to access this resource"
  </code></pre>
  
  <p>But when I do the request directly towards the application it works.</p>