await page.content() stuck forever?

[ecolss]

Steps to reproduce

Tell us about your environment:

• Puppeteer version: 10.1.0
• Platform / OS version: macOS Big Sur, 11.4
• URLs (if applicable): https://venturebeat.com/
• Node.js version: v14.15.1

What steps will reproduce the problem?
Just copy and run the following code:

import pptr from "puppeteer";

async function main(args) {
    let browser = await pptr.launch({
        headless: false,
        defaultViewport: null,
    });

    const url = "https://venturebeat.com/";
    let page = await browser.newPage();
    page.on('console', consoleObj => console.log(consoleObj.text()));

    await page.goto(url, { waitUntil: "networkidle2", timeout: 10000 })
      .catch(err => console.log(`page.goto rejected, err: ${err}`)),
    console.log(`stop loading`);

    // NOTE: seems stuck here forever?
    let contentSize = (await page.content()).length;
    console.log(`content size = ${contentSize}`);

};

main();

What is the expected result?
Since page.goto would timeout, so .catch handles the error.
After that I expect page content size on console, i.e. reach and run the following line of code

console.log(`content size = ${contentSize}`)

What happens instead?
Never print anything, code stuck right at the await page.content(), forever.

[Poyoman39]

Seems linked to #4011

[stale]

We're marking this issue as unconfirmed because it has not had recent activity and we weren't able to confirm it yet. It will be closed if no further activity occurs within the next 30 days.

[stale]

We are closing this issue. If the issue still persists in the latest version of Puppeteer, please reopen the issue and update the description. We will try our best to accomodate it!