[Bug]: When try to open with -ui-port

[alp148]

Version

1.44.0

Steps to reproduce

1 - In debian 12
2 - create folder and init playwright proyect inside with: npm init playwright@latest
3 - run: npx playwright test --ui-port=8080 --ui-host=0.0.0.0
4 - browser page open as blank and in inspector console shows errors to access to uiMode.webmanifest

Expected behavior

open de ui interface with test suites

Actual behavior

browser page open as blank and in inspector console shows errors to access to uiMode.webmanifest

Additional context

No response

Environment

System:
    OS: Linux 6.5 Debian GNU/Linux 12 (bookworm) 12 (bookworm)
    CPU: (8) x64 Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
    Memory: 5.67 GB / 15.50 GB
    Container: Yes
  Binaries:
    Node: 20.13.1 - ~/.nvm/versions/node/v20.13.1/bin/node
    npm: 10.5.2 - ~/.nvm/versions/node/v20.13.1/bin/npm
    bun: 1.0.29 - ~/.bun/bin/bun
  IDEs:
    VSCode: 1.86.2 - /usr/bin/code
  Languages:
    Bash: 5.2.15 - /usr/bin/bash
  npmPackages:
    @playwright/test: ^1.44.0 => 1.44.0

[yury-s]

4 - browser page open as blank and in inspector console shows errors to access to uiMode.webmanifest

Do you access within the system or remotely? If it's a remote system, make sure that port forwarding is configured correctly. I was not able to reproduce it locally or with github codespaces.

[alp148]

Locally and remotely

[yury-s]

Locally and remotely

Weird. It's likely some peculiar configuration on your system. Are you able to start it locally with explicit ip npx playwright test --ui-port=8080 --ui-host=127.0.0.1 ? We can't help with this without being able to reproduce the problem.

[alp148]

The steps i follow are in the issue description:

i seed you screen shots:

And source code:

test-pl.tar.gz

[yury-s]

Can you try opening the same page in incognito mode/different browser and see if it works there? It might have something to do with your browser config.

[yury-s]

We need more information to act on this report. Please file a new one and link to this issue when you get back to it!