title: Symfony locale on homepage issue
body: <p>my website url's should be: <br>
  <a href="http://www.example.com/nl" rel="nofollow noreferrer">http://www.example.com/nl</a> <br>
  <a href="http://www.example.com/en" rel="nofollow noreferrer">http://www.example.com/en</a></p>
  
  <p>I set it this way
  in my config/routes.yml</p>
  
  <pre><code>homepage:
      resource: '@ProjectBaseBundle/Resources/config/routing.yml'
      prefix: /{_locale}
  </code></pre>
  
  <p>The issue persist when i visit</p>
  
  <p><a href="http://www.example.com/" rel="nofollow noreferrer">http://www.example.com/</a> <br>
  Without a language.
  When this happens i got a 404 </p>
  
  <p>How to handle it the correct way?</p>
  
  <p>I googled arround, created extra route on the / etc..
  The meaning is when they visit the unlocalized adress they get a redirect to the localized homepage.</p>
  
  <p>Tips ?</p>