diff -u b/core/modules/contextual/tests/src/FunctionalJavascript/ContextualLinksTest.php b/core/modules/contextual/tests/src/FunctionalJavascript/ContextualLinksTest.php
--- b/core/modules/contextual/tests/src/FunctionalJavascript/ContextualLinksTest.php
+++ b/core/modules/contextual/tests/src/FunctionalJavascript/ContextualLinksTest.php
@@ -36,7 +36,6 @@
     ]));
 
     $this->drupalGet('user');
-
     $this->assertSession()->elementNotExists('css', '.contextual button');
 
     // Ensure visibility remains correct after cached paged load.
@@ -50,13 +49,10 @@
     ]);
 
-    // Ensure the buttons have loaded.
-    $this->assertSession()->assertWaitOnAjaxRequest();
-
     $this->drupalGet('user');
-    $this->assertSession()->elementExists('css', '.contextual button');
+    $this->assertSession()->waitForElement('css', '.contextual button');
 
     // Ensure visibility remains correct after cached paged load.
     $this->drupalGet('user');
-    $this->assertSession()->elementExists('css', '.contextual button');
+    $this->assertSession()->waitForElement('css', '.contextual button');
   }
 }