Question

As you know, Facebook is filtered in many countries, and if we put a “Like” button in our page, they will see a “ACCESS DENIED” message form their internet provider instead of the Like button. so the question is, can I detect if Facebook is viewable by the user or not? so I just show the Like button if the users have access to Facebook and it’s not filtered.

Thanks

Answer 1

Test if the domain www.facebook.com is accessible by loading the favicon.ico and if so, show the iframe:

<iframe src="http://www.facebook.com/plugins/like.php" id="fbfm" style="display:none">
</iframe>

<script>
var fbicon = new Image();
fbicon.onload = function() {
  document.getElementById("fbfm").style.display = "";
};
fbicon.src = "http://www.facebook.com/favicon.ico?" + Math.random();
</script>