Использование прокси в puppeteer

const puppeteer = require('puppeteer');              // puppeteer

(async () => {
const browser = await puppeteer.launch({            // run browser
        args: ['--proxy-server=138.50.50.50:38886'] // use proxy
});
const page = await browser.newPage();               // open new tab
await page.goto('https://whoer.net');               // go to site
await browser.close()                               // close browser
})();

const puppeteer = require('puppeteer');

(async () => {
const browser = await puppeteer.launch({
        args: ['--proxy-server=socks5://server:port']
});
const page = await browser.newPage();

await page.goto('https://whoer.net');
await browser.close()
})();

const puppeteer = require('puppeteer');

(async () => {
const browser = await puppeteer.launch({
        args: ['--proxy-server=server:port']
});
const page = await browser.newPage();
await page.authenticate({
    username: 'login',
    password: 'password',
});
await page.goto('https://whoer.net');
await browser.close()
})();