selenium_node.js

// Selenium + ChromeDriver through a local proxy hop.
//
// Start the hop first, in another terminal:
//
//     BOTPROXY_USERNAME=pxu1000-0 BOTPROXY_PASSWORD=your-password \
//         node node/proxy-hop.js
//
// then run this:
//
//     npm install selenium-webdriver
//     node examples/selenium_node.js
//
// Chrome never sees a credential, so there is no auth prompt to dismiss, no
// extension to build, and nothing that a Chrome release can take away.

'use strict';

const { Builder, By } = require('selenium-webdriver');
const chrome = require('selenium-webdriver/chrome');

const HOP = '127.0.0.1:8888';

async function main() {
  const options = new chrome.Options()
    .addArguments(`--proxy-server=http://${HOP}`)
    // Chrome bypasses the proxy for localhost unless told otherwise. Harmless
    // here, and it keeps a local test server reachable.
    .addArguments('--proxy-bypass-list=<-loopback>')
    .addArguments('--headless=new');

  const driver = await new Builder()
    .forBrowser('chrome')
    .setChromeOptions(options)
    .build();

  try {
    await driver.get('https://httpbin.org/ip');
    const text = await driver.findElement(By.css('pre')).getText();
    console.log('exit IP:', text.trim());
  } finally {
    await driver.quit();
  }
}

main().catch((err) => {
  console.error(err);
  process.exit(1);
});