Working on a small NodeJS project currently which involves the Puppeteer library. The issue I'm having is that the main() function in index.js seems to never exit. All of the code runs fine, but in VS code it looks like the program is still running.

Some sample code below:

var UserAgent = require('user-agents');
const userAgent = new UserAgent();
const puppeteer = require('puppeteer-extra');

const StealthPlugin = require('puppeteer-extra-plugin-stealth');
puppeteer.use(StealthPlugin());

class TS {
    constructor() {
        let page;
    }
    
    async init() {
        const browser = await puppeteer.launch({ headless: false });
        this.page = await browser.newPage();
        await this.page.setUserAgent(userAgent.toString());        
    }
}


async function main(params) {
    console.log("Started main..");
    const ts = new TS();
    await ts.init();
    console.log("Ending main..");
}

main().catch(e => console.error(e));;

If I run the above code in a VS code terminal the output will show:

Started main.. Ending main.. (blank line)

The program will now stay in this state indefinitely until I hit ctrl + C. If I remove the awaited ts.init() call then it works as expected and my terminal shows

Started main.. Ending main.. PS C:\Users\username\Desktop\nodejs-projects\my-project>

Can anyone explain what's going on here?

From all of the research I've done the best I can come up with is some problem with the event loop, though really lost as to what's causing it.

Adding a .then() to main() with something like this solves the problem

    .then(() => {
    setTimeout(() => {
        process.exit(0);
    }, 5000);;
})

This proves that the promise is resolving since the setTimeout() is being called. However if main resolves and there is no code left to run I'm quite lost as to why the program won't automatically end without calling process.exit(). Would really appreciate some help.