This example also works. https://gauntface.github.io/simple-push-demo/

I have testing environment to debug push notifications. It works in Chrome, Chrome Android, FF, FF Android, Opera Android.
Error occurs only in Opera Desktop.

If you need public site: https://goroost.com – this page also generate this error.
It will be nice if you could provide some working page.

Thanks!

I have an error, when trying to subscribe push notifications:
DOMException: Registration failed - push service not available
My code working in Chrome stable.
Which difference between opera and chrome?