Add docs for service worker static routing API

[sisidovski]

Proposal

Service worker static routing API is the newly introduced API. This API allows developers to configure the routing, and allows them to offload simple things ServiceWorkers do. If the condition matches, the navigation happens without starting ServiceWorkers or executing JavaScript, which allows web pages to avoid performance penalties due to ServiceWorker interceptions.

We need a developer friendly doc that explains the API surface, concept, and how to use it.

Primary contacts: @sisidovski, @yoshisatoyanagisawa

Browser support

Chromium: crbug.com/40241479
Gecko: https://bugzilla.mozilla.org/show_bug.cgi?id=1855580
WebKit: https://bugs.webkit.org/show_bug.cgi?id=269893

Tasks

• Currently InstallEvent is labelled as deprecated, we have to remove it.
• The API adds addRoutes function to InstallEvent. Update the page to contain API surface and list all input options that can take.

Dependencies

• ServiceWorker static routing API w3c/ServiceWorker#1701
• Add ServiceWorker Static Routing API support whatwg/fetch#1737
• Remove JavaScript realm dependency whatwg/urlpattern#219

Additional information

• Spec change: ServiceWorker static routing API w3c/ServiceWorker#1701
• Public explainer: https://github.com/WICG/service-worker-static-routing-api

Are you willing to support this work?

Yes

[yoshisatoyanagisawa]

Thanks for filing the issue.
In addition to whatwg/urlpattern#219, we will also have a dependent PR that address whatwg/urlpattern#218. I will work on it after whatwg/urlpattern#219.

It might be nice if we can provide a demo page and source there, which people can just clone and try their own routes.
Something like https://googlechrome.github.io/samples/service-worker/registration-events/ or https://bncb2v.csb.app/