core/modules/tracker/tracker.pages.inc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/core/modules/tracker/tracker.pages.inc b/core/modules/tracker/tracker.pages.inc
index 967a131..78293b7 100644
--- a/core/modules/tracker/tracker.pages.inc
+++ b/core/modules/tracker/tracker.pages.inc
@@ -141,9 +141,11 @@ function tracker_page($account = NULL) {
   $page['#cache']['tags'] = $cache_tags;
   $page['#cache']['contexts'][] = 'user.node_grants:view';
 
+  // Cacheable per "authenticated or not", because we can only track (and show)
+  // reading history for authenticated users, not for anonymous users.
+  $page['#cache']['contexts'][] = 'user.roles:authenticated';
   if (Drupal::moduleHandler()->moduleExists('history') && \Drupal::currentUser()->isAuthenticated()) {
     $page['#attached']['library'][] = 'tracker/history';
-    $page['#cache']['contexts'][] = 'user.roles:authenticated';
   }
 
   return $page;