function template_preprocess_my_detail_page(&$variables) {

  $items = $variables['item'];

  $title =  $items->title;

  $og_title = [
        '#tag' => 'meta',
        '#attributes' => [
          'property' => 'og:title',
          'content' => $title,
        ],
      ];

  $variables['page']['#attached']['html_head'][] = [$og_title, 'og_title'];
}

function MY_MODULE_page_attachments_alter(array &$page) {

  $og_title = [
        '#tag' => 'meta',
        '#attributes' => [
          'property' => 'og:title',
          'content' => '',
        ],
      ];


  $page['#attached']['html_head'][] = [$og_title, 'og_title'];
}