Problem with "Custom Categories" can not add HTTPS URLs

NethServer Version: NethServer release 7.4.1708 (Final)
Module: “Basic firewall” - “Deep packet inspection (DPI)” - “Intrusion Prevention System” - “Web filter” - “Web proxy”

I need to block Whatsapp Web ( and add the URL in “Custom Categories” and it does not block the site, the same thing happens to me with other pages that are HTTPS, but if I add an HTTP page it works.
How should I block HTTPS URLs?

Thank you very much in advance

Sorry for late reply.
Custom categories are meant to set domains (althought doesn’t complain if urls are set, but will use the domain part).

When transparent proxy with SSL is used, it will block both http and https. Maybe your server doesn’t block them as it’s configured to use a different proxy mode.

/cc @filippo_carletti @davidep, there could be a bug in the global urls whitelist/blacklist when using : character.

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