After migrating to Netbox-docker version 2.9.0 and Netbox 4.0, dark mode not being kept when refreshing the page about netbox-docker HOT 5 CLOSED

I can't reproduce the problem with the image from Docker Hub. Are you using the correct FROM tag in your Dockerfile-Plugins?

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Here's the content of Dockerfile-Plugins

FROM netboxcommunity/netbox:latest

COPY ./plugin_requirements.txt /opt/netbox/
RUN /opt/netbox/venv/bin/pip install  --no-warn-script-location -r /opt/netbox/plugin_requirements.txt

# These lines are only required if your plugin has its own static files.
COPY configuration/configuration.py /etc/netbox/config/configuration.py
COPY configuration/plugins.py /etc/netbox/config/plugins.py
RUN SECRET_KEY="dummydummydummydummydummydummydummydummydummydummy" /opt/netbox/venv/bin/python /opt/netbox/netbox/manage.py collectstatic --no-input

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Hi @tobiasge, FYI, I've cleaned down all my images and upgraded Docker Desktop to the latest version 4.30 (on Window 11 Pro) and pulled and rebuilt netbox.

If I use https://localhost I get the issue as described.
I have found that if I connect directly using http://localhost:8000 I don't get the issue and dark mode stays on.

I'm using the recommended setup for Caddy from the wiki TLS

Here's the section from the Caddy file for localhost.

0.0.0.0, ::0, localhost {
    reverse_proxy netbox:8080
    encode gzip zstd
    
    tls /etc/ssl/private/localhost.crt /etc/ssl/private/localhost.key

    log {
      level error
    }
}

There were no issues previoulsy with dark mode using TLS until I upgraded to Netbox 4.0.0 (and Netbox-docker 2.9.0) this morning.

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Might also be related to netbox-community/netbox#16003

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Hi @tobiasge, thanks for pointing that out, I'm not getting the issue this morning and I haven't made any changes. I can only assume that the setmode.js has expired from the cache overnight.

I think that this can be closed, as the fix will be in Fixes #16003: Enable cache busting on upgrade for setmode.js

Below is a screen shot from the debugger for reference. The above fix will add a version number like netbox.js

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