Register the service worker in development

[sk22]

Do you want to request a feature or report a bug?
Feature

What is the current behavior?
The service worker only gets registered in production and when the https is used

What is the expected behavior?
I'd expect preact-cli to also register a service worker in development. On localhost, service workers are also supported without http, so why not? Web Fundamentals, MDN

If this is a feature request, what is motivation or use case for changing the behavior?
This would add the ability to test the service worker in development.

https://github.com/developit/preact-cli/blob/master/src/lib/entry.js#L3

[gnapse]

Any word on this? It'd be cool.

[prateekbh]

if you do preact build and serve the build folder on localhost. It will install the service worker.

[ForsakenHarmony]

we have a dev service worker now, if you want something specific, please add a new issue for it