[BUG] net::ERR_TUNNEL_CONNECTION_FAILED

[amar-dare]

System info
Playwright Version: v1.49.1
Operating System: Debian GNU/Linux 11 (bullseye)
Browser: Default version of Chromium installed in the image mcr.microsoft.com/playwright:v1.49.1-noble
NOTE: - the same code works when run locally on Windows 11 in PyCharm. The error below is when run in a kubernetes pod from a docker image.
- the same connection in the same environment works when using requests.get(url, proxies=proxy) instead of playwright
- the same error happens when using no proxy
- I tried using playwright with Chrome instead of Chromium and I got chrome_crashpad_handler: --database is required
- I tried using playwright with Firefox and the browser fails to start, with no error message. It just times out after a minute

Source code

async with async_playwright() as p:
            logging.debug('Entered async with async_playwright() as p')
            body_texts = {}
            try:
                logging.debug('Attempting to launch browser with proxy settings')
                browser = await p.chromium.launch(
                    proxy={
                    'server': 'proxyserver',
                    'username': 'username',
                    'password': 'password'
                    }
                )

Steps
Try to launch browser

Expected
It launches successfully

Actual
It gives this error:

'''
DEBUG:root:Response: https://en.wikipedia.org/wiki/Manx_language - 407
DEBUG:root:Request failed: https://en.wikipedia.org/wiki/Manx_language - net::ERR_TUNNEL_CONNECTION_FAILED
'''

[Skn0tt]

It's hard for us to debug what exactly is going on based on what you shared. Please provide us with a reproducible example that we can run on our end, to see what's going on. Ideally keep Kubernetes out of it, and reproduce it with Docker.

[amar-dare]

Would it work if I sent you the full function that you can run on your end? I can also send you the dockerfile if you want to see the config.

If something else, please let me know what you need.

As for Kubernetes, I was thinking it could be part of the problem, seeing as the same code runs locally with no errors.

[Skn0tt]

I'd prefer to not debug your application, just from a security perspective. Please create a minimal reproduction.

[amar-dare]

Thank you, I will create another post when I have the example. In the meantime, I have another lead I want to check.