Unable to get all iframes in the page

Steps to reproduce

Tell us about your environment:

• Puppeteer version: 3.3.0
• Platform / OS version: 10.15.5
• URLs (if applicable): https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe
• Node.js version: 12.16.1

What steps will reproduce the problem?

const puppeteer = require("puppeteer");
const url = `https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe`;

(async () => {
	const browser = await puppeteer.launch({
		headless: false,
		defaultViewport: null,
	});
	const page = await browser.newPage();
	await page.goto(url);
	await new Promise((resolve) => setTimeout(resolve, 5000));
	const frames = await page.frames();
	console.log("frames", frames.length);
})();

1. Run the code
2. Logs

What is the expected result?

• 3 total frames. Page has two iframes in the page that you can see by using page’s devtools and running document.getElementsByTagName('iframe')

What happens instead?

• We get just one frame which is the top frame/page.

[lionel126]

have a look thru #5123 there’s a resolution . I tried and it works

[stale[bot]]

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!