ASP.NET Core and Angular - SSR - .net-core

Question

...and it's not working. :(
I create ASP.NET Core app from angular template. I actualy followed these directions from these official ssr docs
Setting up ASPNETCORE_Environment variable
Run dotnet new angular
Modify Startup.cs and add UseSpaPrerendering
Add settings to .angular-cli.json
Add tsconfig.server.json
Add app.server.module.ts
Add main.server.ts
Modify csproj BuildServerSideRenderer option
Run npm i in ClientApp directory
In Development it's work fine. But after production build it work's like in development, ssr not working. Angular continues to run on client.
My steps to build:
Run dotnet build -c Release -o out
Angular builds without errors (after build in out dir, creates 2 angular builds - dist and dist-server (dist-server size is 32Kb)
Run dotnet ssr.dll
These basic steps for SSR. But I modify main.ts and main.server.ts files, add these to extraProviders
for main.ts
{ provide: 'OS', useValue: 'Client' }
for main.server.ts
{ provide: 'OS', useValue: 'Server' }
and modify home component
import { Component, Inject } from '#angular/core';
#Component({
selector: 'app-home',
templateUrl: './home.component.html',
})
export class HomeComponent {
os: string = null;
constructor(#Inject('OS') public osinject: string) {
console.log(osinject);
this.os = osinject;
}
}
Actualy after build and run my project, i should have seen 'Hello Server', but i see 'Hello Client'.
I tried create 2 times from scratch, tried run in docker container, tried run other projects with ssr (find in github). But it all not working for me
> dotnet --version
2.1.403
> node --version
v8.11.3
Whats went wrong guys?
Here my repo (just in case)