EHOSTDOWN error on MacOS

[max-mapper]

Hi again, I was using the server module on my machine (arch linux) and was able to get everything to work OK using the following code (example code)

const AWS = require('aws-sdk') // version 2.746.0

const sqs = new AWS.SQS({
  region: 'us-east-1',
  apiVersion: '2012-11-05',
})

const server = new (require('@abetomo/simply-imitated-sqs').Server)()

let queueUrl = server.run({
  port,
  host: 'localhost',
})

const queueJob = async (name, payload, delay) => {
  const params = {
    QueueUrl: queueUrl,
    MessageBody: JSON.stringify({
      name,
      data: payload,
    }),
    DelaySeconds: delay,
  }
  await sqs.sendMessage(params).promise()
}

However, on my co-workers computer (mac OS, same aws-sdk version) calling sqs.sendMessage resulted in an error Error: connect EHOSTDOWN 169.254.169.254:80, it looked very similar to this one: aws/aws-sdk-js#2038

I thought maybe aws-sdk tries to do some authentication request to the sqs server but I saw no requests being made to the test sqs http server. I was unable to reproduce on my machine. My co-worker confirmed he was authenticated with a working AWS profile and tried again, but received another EHOSTDOWN error

[abetomo]

@maxogden If the port is 80, it seems to cause an error.
It worked when I set the port to 1234 or 8000.

[max-mapper]

Ah interesting. I had port set to '7377' when testing yesterday, definitely not 80

[abetomo]

The value can be anything. (It doesn't have to be an official key.)
Does it work if I specify an environment variable at runtime?

Example.

% AWS_ACCESS_KEY_ID=test AWS_SECRET_ACCESS_KEY=test node index.js