Headless mode not working

[simoconfa]

As title said, the script does not work on Windows when headless: true
Switching it to: headless: false makes it work.

In particular the script stuck at networkidle2:
await page.goto('https://web.microsoftstream.com/', { waitUntil: 'networkidle2' });
After 30s I got timeout exception.
I tried changing it into:
await page.goto('https://web.microsoftstream.com/', { waitUntil: 'domcontentloaded' });
but the script goes on a bit and then it stuck after on this line:
await page.waitForSelector('input[id="login"]'
with another timeout exception.

It seems that the browser have a different behavior when is in headless mode:
puppeteer/puppeteer#665 (comment)
The comment above suggest to change user agent when you are in headless mode.
Maybe an additional window appears, or Polimi prevents bots from login (???)

[alessionossa]

I'm experiencing the same issue with a script that worked well for months. I think it’s caused by some changes in Chromium

[kuro7766]

same problem with chromium