code: func StripSlashes(next http.Handler) http.Handler {
  	fn := func(w http.ResponseWriter, r *http.Request) {
  		var path string
  		rctx := chi.RouteContext(r.Context())
  		if rctx.RoutePath != "" {
  			path = rctx.RoutePath
  		} else {
  			path = r.URL.Path
  		}
  		if len(path) > 1 && path[len(path)-1] == '/' {
  			rctx.RoutePath = path[:len(path)-1]
  		}
  		next.ServeHTTP(w, r)
  	}
  	return http.HandlerFunc(fn)
  }
docs: // StripSlashes is a middleware that will match request paths with a trailing
  // slash, strip it from the path and continue routing through the mux, if a route
  // matches, then it will serve the handler.