Neos\Flow\Http\RequestHandler::addPoweredByHeader PHP Метод

    protected function addPoweredByHeader(Response $response)
    {
        if ($this->settings['http']['applicationToken'] === 'Off') {
            return;
        }
        $applicationIsFlow = $this->settings['core']['applicationPackageKey'] === 'Neos.Flow';
        if ($this->settings['http']['applicationToken'] === 'ApplicationName') {
            if ($applicationIsFlow) {
                $response->getHeaders()->set('X-Flow-Powered', 'Flow');
            } else {
                $response->getHeaders()->set('X-Flow-Powered', 'Flow ' . $this->settings['core']['applicationName']);
            }
            return;
        }
        /** @var Package $applicationPackage */
        /** @var Package $flowPackage */
        $flowPackage = $this->bootstrap->getEarlyInstance(PackageManagerInterface::class)->getPackage('Neos.Flow');
        $applicationPackage = $this->bootstrap->getEarlyInstance(PackageManagerInterface::class)->getPackage($this->settings['core']['applicationPackageKey']);
        if ($this->settings['http']['applicationToken'] === 'MajorVersion') {
            $flowVersion = $this->renderMajorVersion($flowPackage->getInstalledVersion());
            $applicationVersion = $this->renderMajorVersion($applicationPackage->getInstalledVersion());
        } else {
            $flowVersion = $this->renderMinorVersion($flowPackage->getInstalledVersion());
            $applicationVersion = $this->renderMinorVersion($applicationPackage->getInstalledVersion());
        }
        if ($applicationIsFlow) {
            $response->getHeaders()->set('X-Flow-Powered', 'Flow/' . ($flowVersion ?: 'dev'));
        } else {
            $response->getHeaders()->set('X-Flow-Powered', 'Flow/' . ($flowVersion ?: 'dev') . ' ' . $this->settings['core']['applicationName'] . '/' . ($applicationVersion ?: 'dev'));
        }
    }