cookies := make([]*Cookie, 0, len(parts))
	for _, s := range parts {
		s = textproto.TrimString(s)
		name, value, found := strings.Cut(s, "=")
		if !found {
			return nil, errEqualNotFoundInCookie
		}
		if !isCookieNameValid(name) {
			return nil, errInvalidCookieName
		}
		value, quoted, found := parseCookieValue(value, true)
		if !found {
			return nil, errInvalidCookieValue
		}