[whatwg/fetch] Request.destination for `<link rel=prefetch>` (#658)

As mentioned in https://github.com/w3c/resource-hints/issues/66, there's no current Request.destination defined for prefetched resources. We should probably define such a destination, to be able to:
* Expose that destination to SW in a well-defined way.
* Potentially define a prefetch-specific CSP directive, e.g. `prefetch-src` as suggested in https://github.com/w3c/webappsec-csp/issues/107

-- 
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/658