I'm running puppeteer on express/node/ubuntu as follow:

var puppeteer = require('puppeteer');

var express = require('express');

var router = express.Router();



/* GET home page. */

router.get('/', function(req, res, next) {

    (async () => {

        headless = true;

        const browser = await puppeteer.launch({headless: true, args:['--no-sandbox']});

        const page = await browser.newPage();

        url = req.query.url;

        await page.goto(url);

        let bodyHTML = await page.evaluate(() => document.body.innerHTML);

        res.send(bodyHTML)

        await browser.close();

    })();

});

running this script multiple times leaves hundred of Zombies:

$ pgrep chrome | wc -l

133

Which clogs the srv,

How do I fix this?

Running kill from a Express JS script could solve it?

Is there a better way to get the same result other than puppeteer and headless chrome?