return
		}

		// Make sure formValues adhere to policy restrictions.
		if err = checkPostPolicy(formValues, postPolicyForm); err != nil {
			writeErrorResponse(ctx, w, errorCodes.ToAPIErrWithErr(ErrAccessDenied, err), r.URL)
			return
		}

		// Ensure that the object size is within expected range, also the file size
		// should not exceed the maximum single Put size (5 GiB)