Function assertSuccess

src/utils/xhr-utils.js:365–379

(response)

 * @return {!Promise<!Response>}
 */
export function assertSuccess(response) {
  return new Promise((resolve) => {
    if (response.ok) {
      return resolve(response);
    }

    const {status} = response;
    const err = user().createError(`HTTP error ${status}`);
    err['retriable'] = isRetriable(status);
    // TODO(@jridgewell, #9448): Callers who need the response should
    // skip processing.
    err['response'] = response;
    throw err;
  });
}