pass patterns as strings to service worker API

[wanderview]

Per discussions leading up to w3c/ServiceWorker#1468 (comment) there is a growing consensus that patterns should be passed to the service worker API as strings and not objects.

While that integration will ultimately be spec'd in the service worker repo I'm filing an issue here to track it and for eventually updating the explainer.

[sisidovski]

ServiceWorker Static Routing API provides a way to bypass service worker in some specific URLs in the registered scope.

If the scope pattern matching for the service worker registration is required for the bypassing purpose, it can achievable by the the static routing API. The example in the explainer describes how to bypass SW on pages in the scope.

I'll close this issue but feel free to reopen if needed.