Error when adding a forward slash to PLAIN credentials, throws "TypeError: Invalid URL"

[MartianH]

When adding credentials like a password with a forward slash, it either fails to be url encoded (Invalid Url) or when url encoded beforehand (using encodeURIComponent) it returns "host unreachable". The secrets are generated at random and injected so this is quite the problem.

• System: macOS 14.4 (Apple M1 Pro)
• NodeJS: v20.10.0
• foo-foo-mq: ^9.0.1

steps to reproduce

1. Create a rabbitmq instance (rabbitmq:3-management-alpine) with user dummy and password 54sd/d56: set credentials are valid using amqplib (encoded) or the management frontend.

version: '3.8'
services:
  rabbitmq:
    image: rabbitmq:3-management-alpine
    environment:
      - RABBITMQ_DEFAULT_USER=dummy
      - RABBITMQ_DEFAULT_PASS=54sd/d56
    ports:
      - 5672:5672
      - 15672:15672

2. Connect to said broker with given credentials, first without encoding, which usually works, then with encoding.

const rabbit = require("foo-foo-mq");

rabbit
  .configure({
    connection: {
      user: 'dummy',
      pass: '54sd/d56', // with encoding: encodeURIComponent('54sd/d56'),
      server: ['localhost'],
      port: 5672,
      vhost: "%2f",
      replyQueue: false,
    },
    exchanges: [
      {
        name:  'text.ex.fx',
        type: 'fanout',
        durable: true,
      }
    ]
  }).then(async () => {
      await rabbit.publish( 'text.ex.fx', { body: { text: 'hello' } });
      console.log('published');
  }).catch((err) => console.log(err))

3. Run code, it should throw: 1) TypeError: Invalid URL or 2) Logs No endpoints could be reached
4. Edit docker-compose YAML, remove the slash (/) and recreate. It will now log published

Edit: tried encodeURI jut in case, to no avail.