[Bug]: Chromium - Stuck Execution on context.waitForEvent('serviceworker') with extension testing

[darshandp007]

Version

1.49.0

Description

I encountered an issue while testing a Manifest v3 extension using Playwright. The execution gets stuck at the following line and does not proceed:

await context.waitForEvent('serviceworker');

Steps to reproduce:

1. I uploaded the extension to the Chromium browser using the code provided in the Playwright documentation for Testing Chrome Extensions.
2. The execution hangs after the above line, and no further steps are executed.

Observations:

1. The same code worked perfectly in Playwright version 1.48.2.
2. The issue started appearing after upgrading to the current version.

Expected behavior

The code should wait for the serviceworker event and proceed as expected.

Actual behavior

Execution is stuck indefinitely, and the serviceworker event is not detected.

Additional context

• Browser Version: Chromium (131.0.6778.33)
• Playwright Version: (1.49.0)
• Operating System: (Linux)
• Extension Type: Manifest v3

Environment

System:
  OS: Linux 6.2 Ubuntu 22.04.3
Binaries:
  Node: 18.18.2
  npm: 9.8.1
npmPackages:
  @playwright/test: 1.49.0

[dgozman]

@darshandp007 Could you please share a minimal reproducible that includes a sample extension and your test code? That would help to get this issue resolved. Without a repro, it's much less likely we'll be able to figure out the problem.