title: Is it possible to overwrite "server name" response header in traefik?
body: <p>I'm setting up a new server with Traefik (version 1.7.10) for load balancing different NGINX and PHP-FPM containers. </p>
  
  <p>Currently visitors see in the response header that my containers using NGINX. Where can I globaly, for all containers, overwrite the server response header to something other (like "FunnyServer") ? </p>
  
  <p>With HAProxy I have done this in the past and wondering how to do this with Traefik?</p>
  
  <p>Here you see the response coming from HAProxy:</p>
  
  <pre><code>cache-control: no-store, no-cache, must-revalidate, post-check=0, 
  pre-check=0
  content-type: text/html; charset=utf-8
  date: Wed, 17 Apr 2019 20:20:15 GMT
  expires: Thu, 19 Nov 1981 08:52:00 GMT
  pragma: no-cache
  server: MonkeysBananaServer    &lt;===== WITH HAPROXY!!! Traefik??? 
  set-cookie: PHPSESSID=1234567890abcdef; path=/; domain=.xxx.xx
  status: 200
  x-powered-by: PHP/x.x.x
  </code></pre>
  
  <p>As you can see, under HAProxy I have set the response header to "MonkeysBananaServer".</p>