return redirect()->route('new.media.download', ['uuid' => $media->uuid], 302, ["Content-Disposition: attachment; filename=$media->file_name"]);

$options = $headers = [];
if ($request->segment(0) === 'download') {
    $options = ['ResponseContentDisposition' => 'attachment'];
    $headers = ["Content-Disposition: attachment; filename=$media->file_name"];
}

return redirect()->away(
    $media->getTemporaryUrl(now()->addMinutes(5), $conversion, $options), 302, $headers
);