Open all links in new tab

script.js

$('a').on('click', function () {
  var a = new RegExp('/' + window.location.host + '/');
  if (!a.test(this.href)) {
    $(this).click(function (e) {
      e.preventDefault();
      e.stopPropagation();
      window.open(this.href, '_blank');
    });
  }
});