diff --git a/core/lib/Drupal/Core/EventSubscriber/RouteAccessResponseSubscriber.php b/core/lib/Drupal/Core/EventSubscriber/RouteAccessResponseSubscriber.php
index 2e1625b..89e2319 100644
--- a/core/lib/Drupal/Core/EventSubscriber/RouteAccessResponseSubscriber.php
+++ b/core/lib/Drupal/Core/EventSubscriber/RouteAccessResponseSubscriber.php
@@ -10,6 +10,7 @@
 use Drupal\Core\Access\AccessManagerInterface;
 use Drupal\Core\Cache\CacheableResponseInterface;
 use Drupal\Core\Session\AccountInterface;
+use Symfony\Cmf\Component\Routing\RouteObjectInterface;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
 use Symfony\Component\HttpKernel\KernelEvents;
@@ -64,8 +65,10 @@ public function onRespond(FilterResponseEvent $event) {
     }
 
     $request = $event->getRequest();
-    $access = $this->accessManager->checkRequest($request, $this->currentUser, TRUE);
-    $response->addCacheableDependency($access);
+    if ($request->attributes->has(RouteObjectInterface::ROUTE_OBJECT)) {
+      $access = $this->accessManager->checkRequest($request, $this->currentUser, TRUE);
+      $response->addCacheableDependency($access);
+    }
   }
 
   /**