title: Redirect subdirectories to root without changing URL
body: <p>Let's say I have the domain www.example.com where my main site files live. For tracking purposes I have various vanity urls like www.example.com/blah, or www.example.com/blue, www.example.com/bleh where blue, blah and bleh are just empty folders/subdirectories of www.example.com.</p>
  
  <p>I'm currently using a meta tag to redirect back to www.example.com(root) but this loses the original URL with the subdirectory attached.</p>
  
  <p>How can I redirect without losing the URL?</p>
  
  <p>In reality, these vanity urls will look more like: www.example.com/bleh?id=1232 and it's important to have that parameter show up in the URL as well.</p>