Background image not showing when Nextcloud runs in sub folder of domain

[efelon]

Describe the bug
When running the nextcloud installation in a sub folder of the domain (mydomain.de/nc) the background image for the login is not displayed.

Setup (please complete the following information):

• Nextcloud version: 18.0.1
• Theme version: 18.0.6
• Browser and browser version Firefox, Chrome, ...

Additional context
When I manually add the subfolder "nc" to the guest.css like this, it is working:

#body-login {
    background-image:
        url('/nc/apps/theming/image/background'),
        url('/core/img/background.png') !important;
   [...]
}

(original url: /apps/theming/image/background)

The styles from the regular theming show already the correct path but get overwritten by the guest.cc.

[mwalbeck]

Thanks for reporting this. It'll probably make sense to specify the custom background location as a relative path instead of absolute. I'll have a look and get it fixed.

[efelon]

Yor're welcome, I'm happy to help. Let me add a little observation, although I'm not sure it is even related.
When visiting the nextcloud login page. At first for a few milliseconds (depending on your network connection I assume) the custom "Theming Color" is shown before the background image is loaded. Maybe you have some ideas if this can be fixed as well.

[mwalbeck]

I've have changed the background paths to relative ones, which should hopefully fix it. it will be in the next release, hopefully, out sometime this upcoming week.

I also had a look at the background colour on the login screen. I changed it so the background-color is always the main background for the theme, and therefore should look less out of place.

[mwalbeck]

Actually while I'm working on another issue for the upcoming release, could you verify my change works as intended? I've changed the path to

../../../apps/theming/image/background

[efelon]

@mwalbeck Yes and thanks, this path works. If you can test it with a installation in the webroot, then this can be closed.

[mwalbeck]

Great, thanks for testing. It works as intended with with a webroot setup. I'll go ahead and close the issue when the next release is published.

[mwalbeck]

New release has just been published.