Function isTimeoutError

apps/site/next.fetch.mjs:5–10

 */

const isTimeoutError = e =>
  e instanceof Error &&
  typeof e.cause === 'object' &&
  e.cause !== null &&
  'code' in e.cause &&
  e.cause.code === 'ETIMEDOUT';

const sleep = ms => new Promise(r => setTimeout(r, ms));