Docker inside an internal network fails to fetch google.com through TOR proxy

When I isolate my app from the internet, it fails to fetch google.com through tor proxy,
but when I add it to the internet network, it works and the request does go through the tor proxy. I’m really confused by this. What am I doing wrong?

docker-compose.yml

version: "3"

services:
  tor-proxy:
    image: dperson/torproxy
    restart: unless-stopped
    networks:
      - no-internet
      - internet
   
  app:
    depends_on: [tor-proxy]
    build: ./
    restart: unless-stopped
    networks:
      - no-internet
      - internet # if i comment this out, fetch() will result in ETIMEDOUT

networks:
  no-internet:
    driver: bridge
    internal: true

  internet:
    driver: bridge
    internal: false

Dockerfile

FROM node:16

WORKDIR /usr/src/app

COPY . .

CMD ["node", "index.js"]

index.js

import fetch from 'node-fetch';

import { SocksProxyAgent } from 'socks-proxy-agent';

(async () => {
    const agent = new SocksProxyAgent('socks5://tor-proxy:9050');

    const res = await fetch('https://google.com', { agent });
})();