After next stable cut, perhaps. I think its ready enough. Fixes T9360, Fixes T9895
curious, any reason not to land this?
T9897 has the list of things we want to fix before moving Phame out of prototype.
I think this is mostly blocked on me and on custom domains needing some rework to really be usable.
Some of this language in the doc feels a bit weird and out of date with modern tone/focus, let me take a quick pass at it.
I'll caveat custom domains, too.
D16246 for alternate docs.
(This looks flipped -- should just be removing isPrototype()?)
somethings messed up locally.
I don't see isPrototype... so .... huzzah?
Oh, the earlier version of this snuck into D16245. Looks like we're good now, since D16246 just overwrote the docs anyway.