Re: [ServiceWorker] Prefetch/prerender & Client id (#210)

@KenjiBaheux combination of `context == "prerender"` (first request) and `fetchEvent.client.visibilityState == "prerender"` (subsequent requests) is definitely sufficient. :+1: 

@annevk yes, preload is a thing -- implementation underway in Blink. For fetches initiated via rel=preload, I'd expect `context == "preload"`, which.. I believe, should not be a problem? We just might need to add "preload" to the Fetch context table.

---
Reply to this email directly or view it on GitHub:
https://github.com/slightlyoff/ServiceWorker/issues/210#issuecomment-81717057