Any plans to make the browser cache aware of cross domain resources? Basically a hash based cache, where as long as the hash is valid it can be used from a hash based caching pool. This could be integrated with SRI to reduce unnecessary network load without compromising user privacy. Will not provide complete privacy, but might reduce exposure to 3rd party CDNs.

If something like this is implemented, providing frequently used resources via a plugin, privacy aware CDN or even a custom CDN similar to https://addons.mozilla.org/en-US/firefox/addon/decentraleyes... would be possible.