innerHTML([options])

import { chromium } from 'k6/experimental/browser';

export default async function () {
  const browser = chromium.launch();
  const page = browser.newPage();

  await page.goto('https://test.k6.io/browser.php');
  const offScreen = page.locator('#off-screen');
  const innerHTML = offScreen.innerHTML();
  console.log(innerHTML);
}