Bolt\EventListener\RedirectListener::onResponse PHP Method

    public function onResponse(FilterResponseEvent $event)
    {
        if (!$event->isMasterRequest()) {
            return;
        }
        $request = $event->getRequest();
        $response = $event->getResponse();
        if (!$response->isRedirect() || !$response instanceof RedirectResponse) {
            return;
        }
        $this->handleNoBackendAccess($response);
        $this->handleLoginRetreat($request, $response);
    }