<script>
      window.fbAsyncInit = function() {
        FB.init({
          appId      : 'your-app-id',
          xfbml      : true,
          version    : 'v2.1'
        });
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         fjs.parentNode.insertBefore(js, fjs);
       }(document, 'script', 'facebook-jssdk'));
    </script>

<div class="fb-share-button" data-href="http://localhost/dfs/jersey.php" data-layout="button_count"></div>