Hey there, let's get your Puppeteer proxy working properly. That ERR_NO_SUPPORTED_PROXIES error is popping up because Chrome (the engine behind Puppeteer) no longer supports embedding your proxy username and password directly in the --proxy-server command line argument. Here's how to fix this:

Step 1: Update the Proxy Server Argument #

First, remove the username and password from the --proxy-server value—only keep the proxy host and port:

args: [ '--proxy-server=http://zproxy.luminati.io:22225' ]

Step 2: Add Proxy Authentication Separately #

Use Puppeteer's page.authenticate() method to pass your proxy credentials before navigating to any page. This is the official supported way to handle proxy auth now.

Here's your revised full code:

(async () => {
  const browser = await puppeteer.launch({
    headless: false,
    args: [ '--proxy-server=http://zproxy.luminati.io:22225' ]
  });
  const page = await browser.newPage();

  // Authenticate with the proxy
  await page.authenticate({
    username: 'your-actual-username',
    password: 'your-actual-password'
  });

  await page.goto('https://www.whatismyip.com/');
  await page.screenshot({ path: 'example.png' });
  // await browser.close();
})();

Additional Troubleshooting Tips #

• Double-check that your proxy service (Luminati in this case) is active and the host/port/username/password are all correct—typos are a common culprit!
• If you're using a SOCKS proxy instead of HTTP, change the protocol in --proxy-server to socks5:// (e.g., socks5://zproxy.luminati.io:22225).
• Test the proxy manually in a regular Chrome browser first to confirm it can access whatismyip.com without issues—this helps rule out problems with the proxy itself.

内容的提问来源于stack exchange，提问作者Jatt