Storage = {
  getItem: (key, fallback) => {
    if (!localStorage.hasOwnProperty(key)) {
      localStorage.setItem(key, fallback);
    }
    return localStorage.getItem(key);
  },
  setItem: (key, val) => {
    localStorage.setItem(key, val);
  },
};

const fixURL = (urlStr) => {
  const url = new URL(urlStr);
  url.protocol = document.location.protocol;
  url.port = document.location.port;
  return url.toString();
};