[fetch] Explain cache modes (#197)

https://fetch.spec.whatwg.org/#concept-request-cache-mode should contain a note about what the various modes actually do.

https://github.com/slightlyoff/ServiceWorker/issues/412#issuecomment-58646963 has a rough description.

---
Reply to this email directly or view it on GitHub:
https://github.com/whatwg/fetch/issues/197

Received on Saturday, 16 January 2016 11:13:19 UTC