snsの非同期設定

sns.js

( function(d,s,id){
  setTimeout(function() {
    var js,fjs = d.getElementsByTagName(s)[0], p=/^http:/.test(d.location)?'http':'https';
    if(!d.getElementById(id)) {
      js = d.createElement(s); js.id = id;
      js.async = true;
      js.src = p + '://platform.twitter.com/widgets.js';
      fjs.parentNode.insertBefore(js,fjs);
    }
  }, 3000);
} ) (document, 'script', 'twitter-wjs');