Nginx: reverse proxy Influxdb can't find static files

I have a setup where I have multiple service running with docker compose and one Nginx (nginx:1.19-alpine), which acts as a reverse proxy for all services and serves some static files.

One service is an Influxdb container (influxdb:2.1.0-alpine) which provides a UI for webbrowsers.
I want to reverse proxy to this container, but I get problems with the static files of this container.

This would be my rule so far:

upstream database {
    server data-db:8086;
}

server {

    listen 80;

    location /influx/ {
        proxy_set_header X-Real-IP  $remote_addr;
        proxy_set_header X-Forwarded-For $remote_addr;
        proxy_set_header Host $host;
        proxy_pass http://database/;
    }
}

I get a white screen, when I browse to http://localhost:8080/influx/ (localhost:8080 is the Nginx)
The console shows me, that the static files cannot be found.

In the image you can see, that the browser tries to find files at / and not /influx/. That's a problem, because I have other things on /
I've seen similar questions, but can't get my setup to run properly.