[fetch] Preconnect via Fetch? (#114)

Chrome and Firefox now support `<link rel=preconnect>`, which performs the dns/tcp/tls handshakes with the specified origin. However, today there is no way to perform this operation from a Worker - e.g. my SW wants to initiate a preconnect in anticipation of an upcoming request.

Can we express this via Fetch? Should it be a separate API?

Parent bug: https://github.com/w3c/resource-hints/issues/36

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Reply to this email directly or view it on GitHub:
https://github.com/whatwg/fetch/issues/114