$tpl = get_markup_template('msg-header.tpl');
$a->page['htmlhead'] .= replace_macros($tpl, [
'$baseurl' => System::baseUrl(true),
$tpl = get_markup_template('msg-header.tpl');
$a->page['htmlhead'] .= replace_macros($tpl, [
'$baseurl' => System::baseUrl(true),