<meta property="og:site_name" content="PollVerlaine" />
<meta property="og:title" content="<?= $poll->title  ?>" />
<meta property="og:type" content="website" />
<meta property="og:url" content="<?= $app_url ?>/polls/<?= $poll->id ?>" />
<meta property="og:image" content="<?= $app_url ?>/polls/<?= $poll->id ?>/results/svg" />
<meta property="og:image:type" content="image/svg+xml"/>