text: // Polyfill for Element.closest that falls back to Element.matches that falls back to querySelectorAll
  // Created for blazy.js 1.8.1 - https://github.com/dinbror/blazy to ensure IE7+ support
  
  
  (function () {
    if (!Element.prototype.matches) {
      Element.prototype.matches =
        Element.prototype.matchesSelector ||
        Element.prototype.mozMatchesSelector ||
        Element.prototype.msMatchesSelector ||
        Element.prototype.oMatchesSelector ||
        Element.prototype.webkitMatchesSelector ||
        function (s) {
          var matches = (this.document || this.ownerDocument).querySelectorAll(s),
            i = matches.length;
          while (--i >= 0 && matches.item(i) !== this) { }
          return i > -1;
        };
    }
  
    if (!Element.prototype.closest) {
      Element.prototype.closest = Element.prototype.closest ||
        function (selector) {
          var element = this;
          while (element.matches && !element.matches(selector)) element = element.parentNode;
          return element.matches ? element : null;
        };
    }
  })();