caseydelorme.com/public/js/main.js

(function(w){
    // conditionally load hightlight.js /w sunburst css from cdn
    var codes = document.getElementsByTagName('code');
    if (codes.length > 0) {
        console.log("We have code!");
        var css = document.createElement("link");
        css.setAttribute("rel", "stylesheet");
        css.setAttribute("type", "text/css");
        css.setAttribute("href", "https://d2xxklvztqk0jd.cloudfront.net/css/sunburst.js");
        document.getElementsByTagName("head")[0].appendChild(css);
        var js = document.createElement('script');
        js.setAttribute("type", "text/javascript");
        js.setAttribute("async", true);
        js.onload = function() { hljs.initHighlight(); };
        js.setAttribute("src", "https://d2xxklvztqk0jd.cloudfront.net/js/highlight.js");
        document.getElementsByTagName('script')[0].parentNode.insertBefore(js, t);
    }
})(window);