Re: [ServiceWorker] Define some way for foreign fetch to decide on opaqueness of responses (#841)

respondWith() cannot simply unwrap. It needs to be a new filtered response of some kind. Otherwise it would reveal all of the response whereas we want to limit exposure to certain headers and such (and we also don't want to expose more headers than were exposed thus far, might be quite tricky to get that right).

---
Reply to this email directly or view it on GitHub:
https://github.com/slightlyoff/ServiceWorker/issues/841#issuecomment-189203949