Problem with /plesk-stat directory

[giovel]

Hallo, we have a problem with the /plesk-stat directory.

In our server we manage many web domains and, for each of them, we have the /plesk-stat directory under password. To see stats with the browser, users must insert username and password.

we have a problem with one of those domain: when users insert the url of the stats of that domain, the stats will appear without asking username and password. In this way, everyone can see stats.

We have checked the plesk setting and everything seems ok and the directory is under password.

Please, any idea to solve this problem?

Thanks
Giovel