[whatwg/fetch] Add hooks for controlling `dns-prefetch` and `preconnect` (#683)

As outlined in https://github.com/w3c/webappsec-csp/issues/282#issuecomment-357194535 we need to add better controls for `dns-prefetch` and `preconnect`, which will require some Fetch hooks. Opening this issue to track the related Fetch changes.

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/whatwg/fetch/issues/683

Received on Monday, 12 March 2018 08:29:18 UTC