"or_rules": {
                        "rules": [
                         {
                          "header": {
                           "name": ":method",
                           "exact_match": "GET"
                          }
                         }
                        ]
                       }
                      },
                      {
                       "or_rules": {

	// or the URL already has a trailing slash, then we're done.
	if !exactMatch(n, path) && u != nil && !strings.HasSuffix(path, "/") {
		// If there is an exact match with a trailing slash, then redirect.
		path += "/"
		n2, _ := mux.tree.match(host, method, path)
		if exactMatch(n2, path) {
			return nil, nil, &url.URL{Path: cleanPath(u.Path) + "/", RawQuery: u.RawQuery}
		}
	}