Downloads are zero bytes

I am using Download Manager to let users download secure files stored directly on my server, using URLs like /?dl_id=1

To prevent users from guessing file URLs and sharing them publicly, I’m also using a .htaccess file to deny direct access:
Deny from all

I thought this was working fine until I noticed that whenever I download a file via the Download Manager, the downloaded file is always zero bytes. What am I missing here?

• This topic was modified 7 years, 10 months ago by hettyweston.