if opts.Versioned {
		w.Header().Set(xhttp.AmzVersionID, objInfo.VersionID)
	}

	lastModified := objInfo.ModTime.UTC().Format(http.TimeFormat)
	w.Header().Set(xhttp.LastModified, lastModified)
	w.Header().Del(xhttp.ContentType)

	if _, ok := opts.ObjectAttributes[xhttp.Checksum]; ok {
		chkSums := objInfo.decryptChecksums(0)
		// AWS does not appear to append part number on this API call.
		switch {