anchor.diff:    set req.grace = 6h;
   
     # remove cookies
  -  if (req.backend != licensify) {
  +  # FIXME: Path duplicates logic in Router. See comments in vcl_fetch.
  +  if (req.url ~ "^/apply-for-a-licence") {
       unset req.http.Cookie;
     }
   
  
positive.code:     #
      # FIXME: This should be implemented by either the app or the per-app Nginx
      # (by compiling Nginx with the more_headers module, for example).
      #
      # - NS 2012-12-11
      set beresp.http.No-Fallback = "true";
  
negative.code:   # longer than req.grace in vcl_recv.
    set beresp.grace = 6h;
  
    if (req.url ~ "^/apply-for-a-licence") {
      # Licensify sends custom 500 errors, and we need to send No-Fallback: true
      # to prevent the CDN from falling back to the mirror site.
      # Unfortunately, with our current build of Nginx we can't use add_headers
  