Polyfill Element.matches

element-matches-polyfill.js

if(typeof window!=="undefined"){
  window.Element && function(proto) {
    if(!proto.matches) {
      proto.matches = proto.matchesSelector || 
      proto.mozMatchesSelector ||
      proto.msMatchesSelector ||
      proto.oMatchesSelector ||
      proto.webkitMatchesSelector ||
      function (selector) {
        var node = this, nodes = (node.parentNode || node.document).querySelectorAll(selector), i = -1;

        while (nodes[++i] && nodes[i] != node);

        return !!nodes[i];
      }
    }
  }(Element.prototype);
}