Reakce na odpověď

Nejak takto a funguje to:

<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
</head>
<body>

<div id="fb-root"></div>
<script>(function(d, s, id) {
  var js, fjs = d.getElementsByTagName(s)[0];
  if (d.getElementById(id)) return;
  js = d.createElement(s); js.id = id;
  js.src = "//connect.facebook.net/sk_SK/sdk.js#xfbml=1&version=v2.3";
  fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));</script>

<h1>Testujem Like button</h1>
<p>Facebook like tlačítko.</p>

<div class="fb-like" data-href="https://www.facebook.com/pages/2sv%C4%9Btov%C3%A1-v%C3%A1lka/137379809624190?fref=ts" data-width="225px" data-layout="button" data-action="like" data-show-faces="false" data-share="false"></div>

</body>
</html>

html like button