title: HTTP GET request with locale
body: <p>Sometimes when I navigate to a website, the GET request is:</p>
  
  <p><code>GET /se/ HTTP/1.1</code></p>
  
  <p>How is the locale being added instead of just the root? From what I see it is the first request I send to the server. Is my browser adding this in? If so, how does it know to add it for some sites and not others?</p>