ngninx supporting http/2 != Rails supporting http/2

Depending on the use case you leave out nginx sometimes, eg. when doing microservices. Not that nginx is bad but with other stacks you very often don't need nginx and/or connect directly to the CDN reducing complexity in a stack.

nginx transparently proxies using http2 to client and http1 to server. In a standard setup at any scale with a load balancer it doesn't matter that Rails doesn't support all of HTTP2. The client still gets all the benefits of header compression etc.

> In a standard setup

What is a standard setup in 2019, there is none? There is also no standard in using nginx as front facing entity.

In my prior comment I was friendly and gave an example why some might not have nginx in their stack and BTW the discussion is about Rails lacking http2 and you try to convince me that this is expected and right.

This is pure ignorance paired with incompetence, maybe in your small world things work this way. Let's just stop here and go back to your legacy stack.

Something using AWS or GCP LBs, nginx or Apache covers 99.99% of the modern web app hosting scenarios. All support HTTP2 to the client with HTTP1.1 to the server.

This is why nobody is rushing out to rewrite Rack to support HTTP2. Ruby web apps already benefit from almost all of the advantages of HTTP2.