Hi Peter,
If you are testing on "the same address" - like say 127.0.0.1 - and you test with "apps" (some app that has a serviceworker) then that's "registered" in the browser, even when you go back to say an NT10 app.
You can unregister the service worker in Developer Tools, Application tab, Service-Workers section.
>> You won't because it's not being generated for you. And indeed, it's not your _web app_ that's asking for it. It's a _browser_ thing - just like favicon.ico -the browser asks for that as well.
This is "sort of" wrong. (apologies). The request is coming from the browser, not the app, but it's because you _already_ have a service worker on that URL which is looking for an update. So yes, it's coming from the browser, but only because you put it there.
cheers
Bruce