ctx := r.Context()

	vars := mux.Vars(r)
	bucket := pathClean(vars["bucket"])
	update := r.Form.Get("update") == "true"

	// Get current object layer instance.
	objectAPI, _ := validateAdminReq(ctx, w, r, policy.SetBucketTargetAction)
	if objectAPI == nil {
		return
	}

	// Check if bucket exists.