Now when we are almost there using purely YML files to include JavaScript, is it possible to include javascripts everywhere except for in the Drupal administration? Beta 4 does not allow the #attached property anymore, so this solution would be best suited in a YML setup.

1 Answer 1


Sure. Drupal 8 still allows #attached, the difference is just that you specify a library instead of a specific javascript file, but that is irrelevant for your question.

You can implement hook_page_attachments() and ask the route context if this is an admin route.

 * Implements hook_page_attachments().
function yourmodule_page_attachments(&$page) {
  // This returns TRUE for admin paths.
  if (!\Drupal::service('router.admin_context')->isAdminRoute()) {
    $page['#attached']['library'][] = 'yourmodule/yourlibrary';
  • Did the trick, cheers!
    – Undrium
    Commented Jan 20, 2015 at 8:00

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