export function buildUrl({protocol, hostname, port, pathname, search, hash} = window.location) {
  if (search && search[0] !== '?') {
    search = `?${search}`;
  } else if (search === '?') {
    search = '';
  }
  return `${protocol}//${hostname}${port ? `:${port}` : ''}${pathname}${search}${hash}`;
}