docker compose install results in "serviceWorker is undefined"

[Niehztog]

Hello. I am trying to deploy my own self hosted ultraviolet app to my local docker environment using docker compose. I used the following docker-compose.yaml file:

services:
  ultraviolet:
    image: diffusehyperion/ultraviolet
    container_name: ultraviolet-proxy
    ports:
      - "8080:8080"
    restart: unless-stopped

I can then access the ultraviolet server by navigating to http://192.168.0.10:8080 in firefox or chromium. But when I enter any site url in the input box and hit enter, nothing happens. The developer tools reveal a javascript error:
Uncaught TypeError: serviceWorker is undefined

Please advise which steps are necessary to fix this

[proJM-Coding]

Can confirm that this bug exists. I am having it too.