if oi.CacheControl != "" {
		w.Header().Set(xhttp.CacheControl, oi.CacheControl)
	}

	statusCode()
}

// CondCheck represents the conditional request made to the remote cache
// for validation during GET/HEAD object requests.
type CondCheck struct {
	ObjectInfo
	IfMatch           string     `json:"ifMatch,omitempty" msg:",omitempty"`
	IfNoneMatch       string     `json:"ifNoneMatch,omitempty" msg:",omitempty"`

	case ObjectAccessedGetRetention:
		return "s3:ObjectAccessed:GetRetention"
	case ObjectAccessedGetLegalHold:
		return "s3:ObjectAccessed:GetLegalHold"
	case ObjectAccessedHead:
		return "s3:ObjectAccessed:Head"
	case ObjectAccessedAttributes:
		return "s3:ObjectAccessed:Attributes"
	case ObjectCreatedAll:
		return "s3:ObjectCreated:*"
	case ObjectCreatedCompleteMultipartUpload:

func getMultiDeleteObjectURL(endPoint, bucketName string) string {
	queryValue := url.Values{}
	queryValue.Set("delete", "")
	return makeTestTargetURL(endPoint, bucketName, "", queryValue)
}

// return URL for HEAD on the object.
func getHeadObjectURL(endPoint, bucketName, objectName string) string {
	return makeTestTargetURL(endPoint, bucketName, objectName, url.Values{})
}

// return url to be used while copying the object.

	c.Assert(response.StatusCode, http.StatusNoContent)
}

// TestNonExistentBucket - Asserts response for HEAD on non-existent bucket.
func (s *TestSuiteCommon) TestNonExistentBucket(c *check) {
	// generate a random bucket name.
	bucketName := getRandomBucketName()
	// create request to HEAD on the bucket.
	// HEAD on an bucket helps validate the existence of the bucket.

	}{
		{BucketCreated, "s3:BucketCreated:*"},
		{BucketRemoved, "s3:BucketRemoved:*"},
		{ObjectAccessedAll, "s3:ObjectAccessed:*"},
		{ObjectAccessedGet, "s3:ObjectAccessed:Get"},
		{ObjectAccessedHead, "s3:ObjectAccessed:Head"},
		{ObjectCreatedAll, "s3:ObjectCreated:*"},
		{ObjectCreatedCompleteMultipartUpload, "s3:ObjectCreated:CompleteMultipartUpload"},
		{ObjectCreatedCopy, "s3:ObjectCreated:Copy"},
		{ObjectCreatedPost, "s3:ObjectCreated:Post"},

		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	api.getObjectAttributesHandler(ctx, objectAPI, bucket, object, w, r)
}

// HeadObjectHandler - HEAD Object
// -----------
// The HEAD operation retrieves metadata from an object without returning the object itself.
func (api objectAPIHandlers) HeadObjectHandler(w http.ResponseWriter, r *http.Request) {
	ctx := newContext(r, w, "HeadObject")

	maxInQueueBytes                     MetricName = "max_queued_bytes"
	proxiedGetRequestsTotal             MetricName = "proxied_get_requests_total"
	proxiedHeadRequestsTotal            MetricName = "proxied_head_requests_total"
	proxiedPutTaggingRequestsTotal      MetricName = "proxied_put_tagging_requests_total"
	proxiedGetTaggingRequestsTotal      MetricName = "proxied_get_tagging_requests_total"

			Description: "persist IAM assets externally to etcd",
		},
		config.HelpKV{
			Key:         config.CacheSubSys,
			Type:        "string",
			Description: "enable cache plugin on MinIO for GET/HEAD requests",
			Optional:    true,
		},
		config.HelpKV{
			Key:         config.BrowserSubSys,
			Description: "manage Browser HTTP specific features, such as Security headers, etc.",
			Optional:    true,
		},

	DeleteMarker            bool // Is only set in DELETE operations for delete marker replication
	CheckDMReplicationReady bool // Is delete marker ready to be replicated - set only during HEAD
	Tagging                 bool // Is only in GET/HEAD operations to return tagging metadata along with regular metadata and body.

	UserDefined         map[string]string   // only set in case of POST/PUT operations

			Optional:    true,
		},
		config.HelpKV{
			Key:         Endpoint,
			Type:        "string",
			Description: "remote cache endpoint for GET/HEAD object(s) metadata, data" + defaultHelpPostfix(Endpoint),
			Optional:    true,
		},
		config.HelpKV{
			Key:         BlockSize,
			Type:        "string",