Drupal → Добавить в хлебные крошки заголовок текущей страницы

/**
 * Preprocess function for breadcrumb.html.twig.
 */
function THEMENAME_preprocess_breadcrumb(&$variables) {
  if ($variables['breadcrumb']) {
    $request = \Drupal::request();
    $route_match = \Drupal::routeMatch();
    $page_title = \Drupal::service('title_resolver')->getTitle($request, $route_match->getRouteObject());
 
    if ($page_title) {
      $variables['breadcrumb'][] = [
        'text' => $page_title
      ];
    }
  }
}