Update fetch(request), event.default(), event.waitUntil(r) algorithms and fetch hook sketch
Update fetch(request), event.default(), event.waitUntil(r) algorithms and fetch hook sketch

karolklp/ServiceWorker,justinleoye/ServiceWorker,slightlyoff/ServiceWorker,zuzusik/ServiceWorker,chadoliver/ServiceWorker,mkruisselbrink/ServiceWorker,karolklp/ServiceWorker,zuzusik/ServiceWorker,martinthomson/ServiceWorker,karolklp/ServiceWorker,martinthomson/ServiceWorker,justinleoye/ServiceWorker,justinleoye/ServiceWorker,chadoliver/ServiceWorker,martinthomson/ServiceWorker,mkruisselbrink/ServiceWorker,chadoliver/ServiceWorker,zuzusik/ServiceWorker,slightlyoff/ServiceWorker