lib/helpers/polyfill.js
function (re) {
        var arr = [], tag;
        for (tag in register) {
          if (re.test(tag)) arr.push(tag);
        }
        return arr;
      }
function (re) {
        var arr = [], tag;
        for (tag in register) {
          if (re.test(tag)) arr.push(tag);
        }
        return arr;
      }
(C) Andrea Giammarchi - @WebReflection - MIT Style