if !ok {
			continue
		}

		for _, headerValue := range values {
			if len(headerValue) > 0 {
				ret = append(ret, headerValue)
			}
		}
	}
	return ret
}

func unescapeExtraKey(encodedKey string) string {
	key, err := url.PathUnescape(encodedKey) // Decode %-encoded bytes.
	if err != nil {
		return encodedKey // Always record extra strings, even if malformed/unencoded.
	}
	return key

		b.WriteString(name)
	}
	if groups := u.GetGroups(); len(groups) > 0 {
		b.WriteString("[")
		b.WriteString(strings.Join(groups, ","))
		b.WriteString("]")
	}
	return b.String()
}

func unescapeExtraKey(encodedKey string) string {
	key, err := url.PathUnescape(encodedKey) // Decode %-encoded bytes.
	if err != nil {
		return encodedKey // Always record extra strings, even if malformed/unencoded.
	}
	return key