public function checkRule(TypoScriptFrontendController $frontendController, string $uri, array &$explanation, bool &$skipProcessing)
    {
        $name = 'sendCacheHeaders_onlyWhenLoginDeniedInBranch';
        $loginDeniedCfg = (!$frontendController->config['config'][$name] || !$frontendController->loginAllowedInBranch);
        if (!$loginDeniedCfg) {
            $explanation[__CLASS__] = 'LoginDeniedCfg is true';
        }
    }