services: http_middleware.page_cache: class: Drupal\page_cache\StackMiddleware\PageCache arguments: ['@cache.page', '@page_cache_request_policy', '@page_cache_response_policy'] tags: - { name: http_middleware, priority: 200, responder: true } cache.page: class: Drupal\Core\Cache\CacheBackendInterface tags: - { name: cache.bin } factory: ['@cache_factory', 'get'] arguments: [page]