Failed to fetch Error when trying to add new Sites

Hi there,

i am hosting my own instance of Vaultwarden on a Home Server. Everything worked fine so far. I can use it with a browser Plugin and can fill in my login data on my sites. I can also add new sites when I’m directly connected to my Vaultwarden instance via Brwoser. But if I want to add a site via the Brwoser Plugin, I always get an error “Failed to fetch” and the site isn’t added.

Does anyone know what the problem might be?

As I mentioned, I can fill in the Name and passwords via the plugin, I can login to my server on the plugin, I can add sites via the direct server page from the vaultwarden,the only thing is adding a site via the plugin.

Thanks in advance!

Seems I found the solution myself.

I only used the server via IP. Now I set up a URL with Certificate via nginx and it seems to work now when I use the plugin via the URL instead of the IP.