Business
Jobs
  • About Us
  • Solutions
    • Job Postings
      Post your job and receive qualified candidates in 48h.
    • Candidate Assessments
      500+ technical and psychological tests, plus anti-fraud.
    • Headhunting
      Tailor-made executive search from start to finish.
    • Payroll + EOR
      Payroll dispersal and EOR across 15+ LATAM countries.
  • Pricing
  • Jobs

0

1.1K
Views
Bypass Cloudflare's captcha with headless chrome using puppeteer on Heroku

Im trying to access a site with headless chrome using puppeteer on Heroku. My setup works when I try it locally on my machine, but when trying it mounted on Heroku I get something like this: enter image description here

I understand that puppeteer comes with javascript enabled by default and for what I've read it looks like it has nothing to do with that.

Im using puppeteer-extra-plugin-stealth, random-useragent and viewport randomization but nothing seems to work.

Could it be that puppeteer and/or chrome is adding extra stuff when running locally vs on Heroku?

Here's my setup:

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

const USER_AGENT = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.75 Safari/537.36';


let browser = await puppeteer.launch(
  { headless: true, executablePath: process.env.CHROME_BIN || null, args: [
    '--enable-features=NetworkService', '--no-sandbox', '--disable-setuid-sandbox', '--disable-dev-shm-usage'
  ], ignoreHTTPSErrors: true, dumpio: false}
);
let page = await browser.newPage();
const userAgent = randomUseragent.getRandom();
const UA = userAgent || USER_AGENT;

//Randomize viewport size
await page.setViewport({
    width: 1920 + Math.floor(Math.random() * 100),
    height: 3000 + Math.floor(Math.random() * 100),
    deviceScaleFactor: 1,
    hasTouch: false,
    isLandscape: false,
    isMobile: false,
});

await page.setUserAgent(UA);
await page.setJavaScriptEnabled(true);
await page.setDefaultNavigationTimeout(0);
await page.goto('https://external.site.example', { waitUntil: 'networkidle0' });

...
over 4 years ago · Santiago Trujillo
1 answers
Answer question

0

I managed to fix my issue following Raphael PICCOLO's comment on how IP addresses might get detected. Nothing extra was being added or removed by my machine or Heroku, it was just the IP.

I used a proxy which required proxy-chain in order to avoid getting net::ERR_NO_SUPPORTED_PROXIES error.

My code ended up something like this:

const puppeteer = require('puppeteer-extra');
const StealthPlugin = require('puppeteer-extra-plugin-stealth');
puppeteer.use(StealthPlugin());
const randomUseragent = require('random-useragent');
const proxyChain = require('proxy-chain');

const USER_AGENT = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_1) 
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.75 Safari/537.36';

const oldProxyUrl = process.env.PROXY_SERVER;
const newProxyUrl = await proxyChain.anonymizeProxy(oldProxyUrl);

let browser = await puppeteer.launch(
  { headless: true, executablePath: process.env.CHROME_BIN || null, args: [
    '--no-sandbox', '--disable-setuid-sandbox', `--proxy-server=${newProxyUrl}`
  ], ignoreHTTPSErrors: true, dumpio: false}
);
let page = await browser.newPage();
const userAgent = randomUseragent.getRandom();
const UA = userAgent || USER_AGENT;

//Randomize viewport size
await page.setViewport({
    width: 1920 + Math.floor(Math.random() * 100),
    height: 3000 + Math.floor(Math.random() * 100),
    deviceScaleFactor: 1,
    hasTouch: false,
    isLandscape: false,
    isMobile: false,
});

await page.setUserAgent(UA);
await page.setJavaScriptEnabled(true);
await page.setDefaultNavigationTimeout(0);
await page.goto('https://external.site.example', { waitUntil: 'networkidle0' });

...
over 4 years ago · Santiago Trujillo Report
Answer question
Find remote jobs

Discover the new way to find a job!

Top jobs
Top job categories
Business
Post vacancy Pricing Sales
Legal
Terms and conditions Privacy policy
© 2026 PeakU Inc. All Rights Reserved.
Andres GPT
Show me some job opportunities
There's an error!