func sanitizeCookieValue(v string, quoted bool) string {
	v = sanitizeOrWarn("Cookie.Value", validCookieValueByte, v)
	if len(v) == 0 {
		return v
	}
	if strings.ContainsAny(v, " ,") || quoted {
		return `"` + v + `"`
	}
	return v
}

func validCookieValueByte(b byte) bool {
	return 0x20 <= b && b < 0x7f && b != '"' && b != ';' && b != '\\'
}