evaluate tests

var authElement = document.evaluate(".//div[@id]", document, null, 9, null).singleNodeValue;
    if (authElement) {
      Logger.production("Author HoverCard EL: " + JSON.stringify(authElement));
      if (authElement.getAttribute('data-hovercard')) {
        Logger.production("Author HoverCard EL data_hovercard: " + authElement.getAttribute('data-hovercard'));
      }
      if (authElement.getAttribute('data-hovercard')) {
        Logger.production("Author HoverCard EL text: commented");
      }
    }