// API sub-system constants
const (
	apiRequestsMax             = "requests_max"
	apiRequestsDeadline        = "requests_deadline"
	apiClusterDeadline         = "cluster_deadline"
	apiCorsAllowOrigin         = "cors_allow_origin"
	apiRemoteTransportDeadline = "remote_transport_deadline"
	apiListQuorum              = "list_quorum"
	apiReplicationPriority     = "replication_priority"
	apiReplicationMaxWorkers   = "replication_max_workers"

		xhttp.AmzBucketRegion,
		xhttp.Expires,
		"X-Amz*",
		"x-amz*",
		"*",
	}
	opts := cors.Options{
		AllowOriginFunc: func(origin string) bool {
			for _, allowedOrigin := range globalAPIConfig.getCorsAllowOrigins() {
				if wildcard.MatchSimple(allowedOrigin, origin) {
					return true
				}
			}
			return false
		},
		AllowedMethods: []string{
			http.MethodGet,
			http.MethodPut,

	}

	respElements := map[string]string{
		"x-amz-request-id": args.RespElements["requestId"],
		"x-amz-id-2":       args.RespElements["nodeId"],
		"x-minio-origin-endpoint": func() string {
			if globalMinioEndpoint != "" {
				return globalMinioEndpoint
			}
			return getAPIEndpoints()[0]
		}(), // MinIO specific custom elements.
	}

                "sourceIPAddress" : "127.0.0.1:38062"
              },
              "responseElements" : {
                "x-amz-request-id" : "14B09A09703FC47B",
                "x-minio-origin-endpoint" : "http://192.168.86.115:9000"
              },
              "s3" : {
                "s3SchemaVersion" : "1.0",
                "configurationId" : "Config",
                "bucket" : {

	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if origin := w.Header().Get("Access-Control-Allow-Origin"); origin == "null" {
			// This is a workaround change to ensure that "Origin: null"
			// incoming request to a response back as "*" instead of "null"
			w.Header().Set("Access-Control-Allow-Origin", "*")
		}
		if globalDNSConfig == nil || !globalBucketFederation ||

    "Accept-Ranges": "bytes",
    "Content-Length": "0",
    "ETag": "4939450d1beec11e10a91ee7700bb593",
    "Server": "MinIO",
    "Strict-Transport-Security": "max-age=31536000; includeSubDomains",
    "Vary": "Origin,Accept-Encoding",
    "X-Amz-Request-Id": "16ABE7A785E7AC2C",
    "X-Amz-Server-Side-Encryption": "aws:kms",
    "X-Amz-Server-Side-Encryption-Aws-Kms-Key-Id": "arn:aws:kms:my-minio-key",

   6. Trademarks. This License does not grant permission to use the trade
      names, trademarks, service marks, or product names of the Licensor,
      except as required for reasonable and customary use in describing the
      origin of the Work and reproducing the content of the NOTICE file.

   7. Disclaimer of Warranty. Unless required by applicable law or
      agreed to in writing, Licensor provides the Work (and each

	}

	var getCert certs.GetCertificateFunc
	if globalTLSCerts != nil {
		getCert = globalTLSCerts.GetCertificate
	}

	// Initialize gridn
	bootstrapTrace("initGrid", func() {
		logger.FatalIf(initGlobalGrid(GlobalContext, globalEndpoints), "Unable to configure server grid RPC services")
	})

	// Configure server.

	referrerPolicy := env.Get(EnvBrowserReferrerPolicy, kvs.GetWithDefault(browserReferrerPolicy, DefaultKVS))
	switch referrerPolicy {
	case "no-referrer", "no-referrer-when-downgrade", "origin", "origin-when-cross-origin", "same-origin", "strict-origin", "strict-origin-when-cross-origin", "unsafe-url":
		cfg.ReferrerPolicy = referrerPolicy
	default:
		return cfg, fmt.Errorf("invalid value %v for %s", referrerPolicy, browserReferrerPolicy)
	}

requests_deadline               (duration)  set the deadline for API requests waiting to be processed (default: '10s')
cluster_deadline                (duration)  set the deadline for cluster readiness check (default: '10s')
cors_allow_origin               (csv)       set comma separated list of origins allowed for CORS requests (default: '*')