Template:Edinburgh UG/mathjaxConfigJS

(function () {

 var newMathJax = 'https://2017.igem.org/Template:Edinburgh_UG/mathjaxJS?action=raw&ctype=text/javascript';
 var oldMathJax = 'https://2017.igem.org/Template:Edinburgh_UG/mathjaxConfigJS?action=raw&ctype=text/javascript';

 var replaceScript = function (script, src) {
   //
   //  Make redirected script
   //
   var newScript = document.createElement('script');
   newScript.src = newMathJax + src.replace(/.*?(\?|$)/, '$1');
   //
   //  Move onload and onerror handlers to new script
   //
   newScript.onload = script.onload; 
   newScript.onerror = script.onerror;
   script.onload = script.onerror = null;
   //
   //  Move any content (old-style configuration scripts)
   //
   while (script.firstChild) newScript.appendChild(script.firstChild);
   //
   //  Copy script id
   //
   if (script.id != null) newScript.id = script.id;
   //
   //  Replace original script with new one
   //
   script.parentNode.replaceChild(newScript, script);
   //
   //  Issue a console warning
   //
   console.warn('WARNING: cdn.mathjax.org has been retired. Check https://www.mathjax.org/cdn-shutting-down/ for migration tips.')
 }

 if (document.currentScript) {
   var script = document.currentScript;
   replaceScript(script, script.src);
 } else {
   //
   // Look for current script by searching for one with the right source
   //
   var n = oldMathJax.length;
   var scripts = document.getElementsByTagName('script');
   for (var i = 0; i < scripts.length; i++) {
     var script = scripts[i];
     var src = (script.src || ).replace(/.*?:\/\//,);
     if (src.substr(0, n) === oldMathJax) {
       replaceScript(script, src);
       break;
     }
   }
 }

})();