Function getAge

lib/handler/cache-handler.js:412–416

* @param {string | string[]} ageHeader * @returns {number | undefined}

(ageHeader)

 * @returns {number | undefined}
 */
function getAge (ageHeader) {
  const age = parseInt(Array.isArray(ageHeader) ? ageHeader[0] : ageHeader)

  return isNaN(age) ? undefined : age * 1000
}

/**
 * @param {import('../../types/cache-interceptor.d.ts').default.CacheOptions['type']} cacheType