diff --git a/core/lib/Drupal/Core/Form/FormBuilder.php b/core/lib/Drupal/Core/Form/FormBuilder.php
index 9ffcccd..1f74692 100644
--- a/core/lib/Drupal/Core/Form/FormBuilder.php
+++ b/core/lib/Drupal/Core/Form/FormBuilder.php
@@ -610,7 +610,11 @@ public function processForm($form_id, &$form, FormStateInterface &$form_state) {
    *   A renderable array representing the form action.
    */
   public function renderPlaceholderFormAction() {
-    return ['#link' => $this->buildFormAction()];
+    return [
+      '#type' => 'markup',
+      '#markup' => $this->buildFormAction(),
+      '#cache' => ['max-age' => 0],
+    ];
   }
 
   /**
@@ -631,7 +635,7 @@ public function prepareForm($form_id, &$form, FormStateInterface &$form_state) {
       // Attach the lazy builder to the form and add the placeholder in the form
       // action so the #lazy_builder callback knows what to replace.
       $form['#attached']['placeholders'][$placeholder] = $placeholder_render_array;
-//      $form['#action'] = $placeholder;
+      $form['#action'] = $placeholder;
     }
 
     // Fix the form method, if it is 'get' in $form_state, but not in $form.