return
			} else if policyName == "" {
				writeSTSErrorResponse(ctx, w, ErrSTSInvalidParameterValue,
					fmt.Errorf("None of the given policies (`%s`) are defined, credentials will not be generated", policies))
				return
			}
		}
		claims[iamPolicyClaimNameOpenID()] = policyName
	}

			return false
		}

		// Finally, if there is no parent policy, check if a policy claim is
		// present.
		if len(svcPolicies) == 0 {
			policySet, _ := policy.GetPoliciesFromClaims(args.Claims, iamPolicyClaimNameOpenID())
			svcPolicies = policySet.ToSlice()
		}
	}

	// Defensive code: Do not allow any operation if no policy is found.
	if !isOwnerDerived && len(svcPolicies) == 0 {
		return false
	}

	case globalIsErasure:
		return globalMinioModeErasure
	case globalIsErasureSD:
		return globalMinioModeErasureSD
	default:
		return globalMinioModeFS
	}
}

func iamPolicyClaimNameOpenID() string {
	return globalIAMSys.OpenIDConfig.GetIAMPolicyClaimName()
}

func iamPolicyClaimNameSA() string {
	return "sa-policy"
}

		if err != nil {
			writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
			return
		}
		if len(policiesNames) == 0 {
			policySet, _ := args.GetPolicies(iamPolicyClaimNameOpenID())
			policiesNames = policySet.ToSlice()
		}

		stsAccountPolicy = globalIAMSys.GetCombinedPolicy(policiesNames...)
	}

	policyJSON, err := json.MarshalIndent(stsAccountPolicy, "", " ")