old_contents: (function(){NodeList.prototype.forEach=Array.prototype.forEach;HTMLCollection.prototype.forEach=Array.prototype.forEach;NodeList.prototype.on=function(etln){this.forEach(function(el){el.addEventListener(et,ln);});};})();
new_contents: (function(){NodeList.prototype.forEach=Array.prototype.forEach;HTMLCollection.prototype.forEach=Array.prototype.forEach;NodeList.prototype.on=function(et,ln){this.forEach(function(el){el.addEventListener(et,ln);});};})();
subject: Fix dom.polyfill parameters