Might be caused by Windows OS itself.
OTOH try setting different "priority" and "silent" when creating a notification:
https://developer.chrome.com/extensions/notifications#property-NotificationOptions-priority

Thanks for the tips, but they do not work.

I tested the lower priorities of -2 and -1 but they are not supported on Windows.
Error given: "Low-priority notifications are deprecated on this platform."

I also tested "silent" but it does not prevent the screen from being turn on.

Thanks for filing the issue...

@Reporter: It would be really helpful if a sample notifications test file is provided, so that we can investigate the issue further.

Thanks..!

A sample is here

Deleted: test.js 242 bytes

test.js 242 bytes View Download

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jasonsavard@ Thanks for the update.

The attached JS file is not helpful for us in further triaging of the issue.
Request you to provide a sample extension/file, where the issue can be reproduced, which will help further.

Thanks..

Ok here is a complete packaged extension which after 5 minutes of initiating the extension will launch a Chrome notification. Your computer will need to go into sleep before then to reproduce the issue.

Deleted: test.crx 2.3 KB

test.crx 2.3 KB Download

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