[Bug]: Error with missing structuredClone API in Node 16 when doing a screenshot

[ArnaudBuchholz]

Minimal, reproducible example

import puppeteer from 'puppeteer'; // TS/ESM are all supported.

global.structuredClone = function () {
  throw Error('Use of structuredClone (which does not exist in Node 16)');
};

(async () => {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  const result = await page.screenshot();
  console.log(result);
  await browser.close();
})();

Error string

Use of structuredClone (which does not exist in Node 16)

Bug behavior

• Flaky
• PDF

Background

https://developer.mozilla.org/en-US/docs/Web/API/structuredClone#browser_compatibility

Expectation

The code was working (puppeteer@20) but it recently broke.

Reality

I know Node 16 is on the verge of being deprecated but I didn't see any breaking change telling it is no more supported.

Puppeteer configuration file (if used)

No response

Puppeteer version

21.3.3

Node version

16.20.2

Package manager

npm

Package manager version

8.19.4

Operating system

Windows

[github-actions]

This issue has an invalid Node.js version: 16. Versions must follow SemVer formatting. Please update the form with a valid version.

---

Analyzer run

[ArnaudBuchholz]

Updated Node.js version to 16.20.2 (lts/gallium)

[OrKoN]

Looks like an accidental change slipped in but we will drop Node 16 support probably next week, the PR is in progress #10912

[ArnaudBuchholz]

That was fast, thank you !