pluginfix.js

(function () {
  var systemnormalize = System.normalize;
  var blacklist = ['systemjs-json'];

  function shouldReverse(parts) {
    return parts.every(function (part) {
      return blacklist.indexOf(part) === -1;
    });
  }

  System.normalize = function (name, parentName) {
    var parts = name.split('!');

    if (parts.length > 1 && shouldReverse(parts)) {
      name = parts.reverse().join('!');
    }

    return systemnormalize.call(this, name, parentName);
  };
})();