When got a 403 response in glance panel, it will be redirect to log out

Based on implemented by angularjs framework, glance panel has such a problem:
1. Set get_metadef_namespaces to '!' in glance/policy.json
2. Log into horizon and direct to image panel
3. Horizon will accept a response like:
   403 Forbidden: You are not authorized to complete get_metadef_namespaces action. (HTTP 403)"
   Due to the following code, web will be redirect to login page:
  function httpRedirectLogin($q, $rootScope, $window, frameworkEvents, toastService) {
    return {
      responseError: function (error) {
        if (error.status === 401) {
          var msg = gettext('Unauthorized. Redirecting to login');
          handleRedirectMessage(msg, $rootScope, $window, frameworkEvents, toastService);
        }
        if (error.status === 403) {
          var msg2 = gettext('Forbidden. Redirecting to login');
          handleRedirectMessage(msg2, $rootScope, $window, frameworkEvents, toastService);
        }
        return $q.reject(error);
      }
    };
  }

I don't think it make sense to log out because the policy restricts this operation, but have no idea how to optimize. Hope anyone can give me suggestions.