JS is not executed

[bmblb]

Steps to reproduce

Tell us about your environment:

• Puppeteer version: 10.0.0 (same happens on 5.5.0)
• Platform / OS version: WSL1, Windows 10 2004 build 19041.1052
• URLs (if applicable):
• Node.js version: 14.17.0

What steps will reproduce the problem?

1. checkout this simple js app: https://github.com/bmblb/puppeteer-script-bug
2. cd to the directory, run npm i
3. run npm run serve & to start local http server in bg mode
4. run npm run test to execute script

What is the expected result?
Script should log app.js to the console

What happens instead?
Script doesn't log anything

puppeteer-script-bug$ npm run test

> puppeteer_test@1.0.0 test /mnt/f/work/bryntum/tmp/puppeteer-script-bug
> node ./index.js

301
http://localhost:5000/index.html
301
http://localhost:5000/index
200
http://localhost:5000/
200
http://localhost:5000/app.js

Now, if you uncomment line 9 --single-process script will run just fine:

puppeteer-script-bug$ npm run test

> puppeteer_test@1.0.0 test /mnt/f/work/bryntum/tmp/puppeteer-script-bug
> node ./index.js

301
http://localhost:5000/index.html
301
http://localhost:5000/index
200
http://localhost:5000/
200
http://localhost:5000/app.js
0: JSHandle:app.js

I don't really understand what's going on, I couldn't find any report on javascript not running in puppeteer in WSL1. I was looking through other puppeteer bug reports and was just trying random flags that worked for other people, this one helped.

Could you please explain what's happening?

[sadym-chromium]

Didn't get into details, but at the first glance it looks like a side effect of the OOPiF: #2548

[bmblb]

Not using any iframes there though. Just a regular page which loads JS

[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!