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I've been using Playwright Trace Viewer successfully on Windows 10, but after upgrading to Windows 11, it stopped working.

When I run the command: npx playwright show-trace <trace.zip

I get the following error: Error: Protocol error (Browser.getVersion): Internal server error, session closed.

I also tried specifying the browser: npx playwright show-trace <trace.zip> -b webk

This launches the Trace Viewer window, but it fails to authenticate. The URL it tries to open looks like http://[::1]:, and I suspect a firewall or security policy is blocking it.

What I’ve Verified:

Trace files are generated correctly on Windows 11. The same trace files work fine on a teammate’s Windows 10 machine. The web version of the Trace Viewer works perfectly for all trace files. The issue seems isolated to the local viewer command on Windows 11.

Environment:

OS: Windows 11 Playwright version: 1.53.0 Language: C# (.NET 8)

What I’m Looking For:

Has anyone successfully used Playwright Trace Viewer on Windows 11? Any known issues or workarounds? Suggestions for debugging the Browser.getVersion protocol error?

Thanks in advance!

Improve this question
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  • 1
    Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking. Commented Sep 1 at 16:13
  • "Does playwright Trace viewer worked in Windows 11 for anyone?" I'm sure it does. How are you creating your trace? Can you provide a minimal reproducible example or provide the trace? Was the trace originally created on Windows 10 or 11? Commented Sep 1 at 16:59
  • Hi Ggorlen, I have updated my question with additional details, I am creating scenario level trace file in my Hooks. Trace file creation is fine, I am able to view this file in Windows 10 machine but facing an issue in Windows 11 machine and not able to view the trace viewer. Note: The web version of playwright trace viewer is working for me, the command way of accessing in my local machine is not working. Commented Sep 2 at 22:41
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