Earlier quoted context omitted.
SVGs are displayed whether or not they're hosted on Adobe's servers. What other servers are serving AMP pages, (edit: and would benefit from this "cached from " URL bar display logic) other than Google's news product?
All the publishers Google copies the AMP from? Google could just redirect mobile users to that if they wanted, as can every other site linking to a page. If they then also got rid of the requirement of loading the AMP JS from a CDN Google runs, they'd actually have something resembling an open standard...
But all of those URLs display correctly.
We're talking about having browsers add special-case logic in which some URLs on one particular special domain (news.google.com) belonging to one private company (Google) are treated and displayed differently than everything else on the internet.
> If they then also got rid of the requirement of loading the AMP JS from a CDN Google runs, they'd actually have something resembling an open standard
Sure, if this turned into an actual Open standard, and we were talking about extending browser display logic to any server on the internet that served an AMP page belonging to some other site, that would make sense.
But having browsers bless one company's subdomain with special rules that apply only to it is about as anti-open web as you can get.