iTunesのAuto Link Makerのタグを改善した例

itunes-auto-link-maker-tag

<!-- 改善前のオリジナルタグ -->
<script type='text/javascript'>
var _merchantSettings=_merchantSettings || [];
_merchantSettings.push(['AT', '11l8bx']);
(function() {
    var autolink = document.createElement('script');
    autolink.type = 'text/javascript';
    autolink.async = true;
    autolink.src = ('https:' == document.location.protocol) ? 'https://autolinkmaker.itunes.apple.com/js/itunes_autolinkmaker.js' : 'http://autolinkmaker.itunes.apple.com/js/itunes_autolinkmaker.js';
    var s = document.getElementsByTagName('script')[0];
    s.parentNode.insertBefore(autolink, s);
})();
</script>

<!-- 改善した後のタグ -->
<script>
var _merchantSettings=_merchantSettings || [];
_merchantSettings.push(['AT', '11l8bx']);
(function(d, s) {
    var f = d.getElementsByTagName(s)[0],
        j = d.createElement(s);
    j.async = true;
    j.src = 'https://autolinkmaker.itunes.apple.com/js/itunes_autolinkmaker.js';
    f.parentNode.insertBefore(j, f);
})(document, 'script');
</script>