Backoff not working

Created by: Jujunol

Description

When running Bull and provide backoff as per the documentation here I can't seem to get the backoff to trigger despite what I do.

I've created a minimal version:

const Queue = require('bull');
const jobData = {
    "data": {
        "comment": "data for job goes here"
    },
    "options": {
        "delay": 0,
        "backoff": {
            "type": "exponential",
            "delay": 100
        }
    }
};


const callbackQueue = new Queue('callback');


callbackQueue.process(function(job, done) {
    console.log('MEOW');
    done(new Error('Backoff occur'));
});


callbackQueue.add(jobData['data'], jobData['options']);

As you'd expect, the MEOW should occur over-and-over ; however, it will only occur once

Bull version

"bull": "3.5.2",

Additional information

OS: Windows 10