if err != nil {
			if err == errConfigNotFound {
				return errNoSuchPolicy
			}
			retries--
			if retries <= 0 {
				return err
			}
			time.Sleep(500 * time.Millisecond)
			goto retry
		}

		var p PolicyDoc
		err = p.parseJSON(data)
		if err != nil {
			return err
		}

		if p.Version == 0 {