title: traefik custom rule PathStrip does not match
body: <p>TRying out custome rule in traefik .. </p>
  
  <p>it should </p>
  
  <ul>
  <li>Remove /code from the url and send remaining to backend based on the other matcher</li>
  </ul>
  
  <p>Example url : /code/rr ; 
     only /rr should be sent to backend .. Looks like only /code is sent to backend. </p>
  
  <p>Below is my rule , but not working .. </p>
  
  <pre><code>      [frontends.f_rr]
         entrypoints = ["http","https"]
         priority = 10
           passHostHeader = true
         backend = "b_co"
          [frontends.f_co.routes.test_1]
          rule = "PathStrip: /code/; Path:/rr"
  </code></pre>