> If you do that, you make it extremely difficult to build
> intermediaries like:
>
> * store-and-forward services
> * caches
> * firewalls
> * proxies
> * message routers
> * privacy managing intermediaries
This is not strictly true.
I don't think you can assume that visibility is always a good
thing.... and I would say that in many cases, HTTP 1.1 proxies have
too much visibility, especially from a security perspective.... the
classic "man in the middle attack" can be made fairly easily unless
you're using SSL etc.
I think disclosure/visibilitycan be an archilles heel...
