Is there a way to return HTTP 204 No Content without Content-Length and Content-Type headers?
Hello,

I.e. is it possible send a `204 No Content` response without specifying an empty body?

~I currently emit 204 No Content like [this](https://github.com/jpalomaki/nim-app/blob/main/src/app.nim#L8), for a simple health check endpoint.~

Thanks,
Jukka