I'd add that when you take this approach there is little reason your myapp.com endpoint needs to be anything more than a resource loader. Nginx + AppCache is al

I'd add that when you take this approach there is little reason your myapp.com endpoint needs to be anything more than a resource loader. Nginx + AppCache is all you really need to make your app load instantly with plenty of connections. Your API can, and probably should, set on a completely different server.