export const DOES_NOT_SUPPORT_FETCH = 0; export const errors = { [DOES_NOT_SUPPORT_FETCH]: { message: 'Browser not supported!', detail: 'This browser does not support "fetch", please choose another one.' }, default: { message: 'Oops, something went wrong!' } }; export function deriveMessageFromError(err) { const { code } = err; if (typeof code === 'number') { return errors[code]; } return errors.default; }