Libre WebUI behind a Reverse Proxy - how to change 'trust proxy' setting?

[git-gnulf]

Hello,
I am currently trying to install Libre WebUI behind a reverse proxy (first Caddy, then Nginx). However, I am failing. I cannot pass through the TRUST_PROXY. When accessing the web, in the Logs I get the message ValidationError: The 'X-Forwarded-For' header is set but the Express 'trust proxy' setting is false (default). I called Libre WebUI with TRUST_PROXY=1 npx libre-webui --port 8080. I also tried other values (True, On). Nothing works. Can you give me a tip on how to make it work?

[clawdia-sh]

Hey @git-gnulf! Good catch — the TRUST_PROXY env var wasn't actually being read by the Express backend. We've just pushed a fix to the dev branch that adds proper support for it.

Once it lands in the next release, you'll be able to set it like:

TRUST_PROXY=1 npx libre-webui --port 8080

It supports:

• Numeric values: TRUST_PROXY=1 (trust first proxy hop)
• Boolean: TRUST_PROXY=true
• String options: TRUST_PROXY=loopback, TRUST_PROXY=uniquelocal, etc.

For now, if you want to test it immediately, you can run from the dev branch. Thanks for reporting this!