code: function onEachExcludedRoute(app, route) {
    const normalized = normalize(route);
  
    debug(`Excluding ${(normalized.method || 'all').toUpperCase()} ${normalized.path} from CSRF check...`);
  
    const router = app.route(normalized.path);
  
    if (is.array(normalized.method) && normalized.method.length) {
      for (let i = 0, l = normalized.method.length; i < l; i++) {
        exclude(router, normalized.method[i]);
      }
    }
  
    if (is.string(normalized.method)) {
      exclude(router, normalized.method);
      return;
    }
  
    /* Defaults to all */
    exclude(router, 'all');
  }
docs: Processes each excluded route.
  
  @param {ExpressApplication} app Your express application instance.
  @param {Object} route The route object to process.