diff --git a/sites/development.services.yml b/sites/development.services.yml
index 73cc998..94bc2ec 100644
--- a/sites/development.services.yml
+++ b/sites/development.services.yml
@@ -2,6 +2,9 @@
 #
 # To activate this feature, follow the instructions at the top of the
 # 'example.settings.local.php' file, which sits next to this file.
+parameters:
+  http.response.debug_cacheability_headers: true
 services:
   cache.backend.null:
     class: Drupal\Core\Cache\NullBackendFactory
+