message: Simplifiy param null check
diff: /** @ignore */
  export function fetchPrivate(input: RequestInfo, init?: RequestInit): Promise<Response> {
  - if (!init) {
  - init = { referrerPolicy: 'no-referrer' }
  - } else {
  + init = init || { }
  init.referrerPolicy = 'no-referrer'
  - }
  return fetch(input, init)
  }
  