--- /dev/null
+/**
+ * Implements hook_ajax_render_alter().
+ */
+function {{ machine_name }}_ajax_render_alter(array &$data) {
+ // Inject any new status messages into the content area.
+ $status_messages = ['#type' => 'status_messages'];
+ $command = new \Drupal\Core\Ajax\PrependCommand('#block-system-main .content', \Drupal::service('renderer')->renderRoot($status_messages));
+ $data[] = $command->render();
+}