Force SSL on Nginx Proxy Manager

Nextcloud version: 27 (AIO 6.4.0)
OS: Ubuntu Server 22.04
PHP version: 8.1 (I think)

Hey guys,
I have nextcloud working, however when It comes to the NPM settings, when setting Force SSL on, as recommended in the NPM guide on the AIO github, Firefox gives a “The page isn’t redirecting properly” error. When this setting is off however, all is fine. I can try and access the page via http, but it looks like I’m immediately connected to https. I’d really like to have Force SSL on as it’s recommended, but am i misunderstanding what it does? It looks like SSL is forced anyway

Thanks guys

Bump, also I’m getting a notice in Security & Setup warnings:

The “Strict-Transport-Security” HTTP header is not set to at least “15552000” seconds. For enhanced security, it is recommended to enable HSTS as described in the security tips :arrow_upper_right:.

Anyone have any ideas? Nothing bad has happened so far but I don’t like the yellow colour in the settings page

Are you using Cloudflare