plugins/content/templates/user/empty_page.stpl
<!DOCTYPE html>
<html>
<head>
<title>{if_ok(title)}{title}{else}{execute(graphics,show_site_title)}{/if}</title>
{exec_last(assets,show_css)}
{execute(graphics,show_metatags)}
<meta charset="utf-8">
<meta name="robots" content="noindex,nofollow,noarchive,nosnippet">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
{text}
{if_true(close_button)}<div align="center"><a href="javascript:void(0)" onclick="window.close();">{t(Close)}</a></div>{/if}
{exec_last(assets,show_js)}
</body>
</html>