HTTPS-everywhere vs. proxy caching

[jra at baylink.com (Jay Ashworth)]

It occurs to me that I don't believe I've seen any discussion of the 
Unexpected Consequence of pervasive HTTPS replacing HTTP for unauthenticated
sessions, like non-logged-in users browsing sites like Wikipedia.

That traffic's not cacheable, is it?  Proxy caches on services like 
mobile 3/4G, or smaller ISPs, or larger corporations can't cache it, I
wouldn't think, which means both that they will see traffic increases,
and that the end sites will as well.

Has this been discussed and I missed it?  Do I improperly understand
transparent caching?  Or is this just a bomb waiting to go off?

I assume that Wikipedia themselves are on top of the idea that their
in-house reverse-proxies won't be carrying that traffic (though I don't 
actually know what their architecture looks like anymore), but..

Cheers,
-- jra
-- 
Jay R. Ashworth                  Baylink                       jra at baylink.com
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