checkHeader := map[string][]string{}
	ignoreKeys := map[string]bool{}
	for key, value := range formValues {
		switch {
		case ignoreKeys[key], postPolicyIgnoreKeys[key], strings.HasPrefix(key, encrypt.SseGenericHeader):
			continue
		case strings.HasPrefix(key, "X-Amz-Ignore-"):
			ignoreKey := strings.Replace(key, "X-Amz-Ignore-", "", 1)
			ignoreKeys[ignoreKey] = true
			// if it have already