Issue #3442714 by ericgsmith, Mingsong: AJAX error when password field is hidden

Closes #3442714

password_policy.module

@@ -71,9 +71,9 @@ function password_policy_form_user_form_alter(&$form, FormStateInterface $form_s
     $form['field_password_expiration']['#access'] = FALSE;
     $form['field_pending_expire_sent']['#access'] = FALSE;
   }
-
-  // Load form if relevant.
-  if (\Drupal::service('password_policy.validation_manager')->tableShouldBeVisible()) {
+  $password_mutable = $form['account']['pass']['#access'] ?? TRUE;
+  // Load form if relevant and password is mutable.
+  if (\Drupal::service('password_policy.validation_manager')->tableShouldBeVisible() && $password_mutable) {
     $form['account']['password_policy_status'] = [
       '#type' => 'item',
       '#theme' => 'password_policy_status',