Use puppeteer with waitUntil.networkidle0 to get fully loaded page

To solve 'Is there a way to let cURL wait until the page's dynamic updates are done?', here is the code to solve it after googlings:

const puppeteer = require('/usr/local/lib/node_modules/puppeteer');

const fs = require('fs');

function sleep(ms) {

  return new Promise(resolve => setTimeout(resolve, ms));

}

async function getContent(url, outputFile) {

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

  const page = await browser.newPage();

  retries = 0

  while (retries < 3) {

    try {

      const response = await page.goto(url, {waitUntil: 'networkidle0'});

      const status = response._status

    

      if (status == '200') {

        const html = await page.content();

        fs.writeFile(outputFile, html, function (err) {

          if (err) throw err;

        });

        console.info('Success');

        break;

      } else {

        console.error('Fail to load [' + url + '] w/ status code: ' + status);

      }

    } catch (error) {

      console.error('Exception: ' + error)

    }

    console.info('Retrying ' + ++retries);

    await sleep(3000)

  }

  await browser.close();

};

const myArgs = process.argv.slice(2);

const url = myArgs[0]

const outputFile = myArgs[1]

getContent(url, outputFile);