"No SW" Error

[Scott Fortmann-Roe]

As we roll out our MV3 version, we have started to occasionally see a "No SW" message in our error logs.

This message string doesn't appear to be coming from our extension, but instead from Chrome here: 

https://source.chromium.org/chromium/chromium/src/+/main:extensions/browser/extension_function_dispatcher.cc;l=338?q=%22No%20SW%22&ss=chromium

We're wondering what it means and how to go about addressing it.

Any advice would be appreciated!

Scott

[Oliver Dunk]

Hi Scott,

This seems like a Chrome bug and something that you shouldn't need to handle in your extension.

Do you have any steps to reproduce or have you noticed any common factors in the situations where you encounter these logs?

Please feel free to open an issue at https://crbug.com/ - in the meantime, I'll chat to the team and see if they have any advice on how to debug this.

Oliver Dunk | DevRel, Chrome Extensions | https://developer.chrome.com/ | London, GB

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[Scott Fortmann-Roe]

Thank you Oliver.

I've filed an issue here: https://issues.chromium.org/issues/341232995

[Oliver Dunk]

Thanks Scott!

I left a reply on the bug.

I'd also be curious if you're seeing any reduction for this in Chrome 126, assuming you have logs by version.

Oliver Dunk | DevRel, Chrome Extensions | https://developer.chrome.com/ | London, GB