Response Compression in ASP.NET Core 2.1 with React (CRA) - asp.net-core

Question

Here's the official document of doing response compression: https://learn.microsoft.com/en-us/aspnet/core/performance/response-compression?view=aspnetcore-2.1&tabs=aspnetcore2x
I followed the document and found that only while debugging it worked (index.html, bundle.js got compressed). After published, the app didn't compress anything. What should I do to make it work in production.
// Program.cs
public class Program
{
public static IWebHostBuilder CreateWebHostBuilder(string[] args)
{
return WebHost.CreateDefaultBuilder(args)
.ConfigureAppConfiguration((hostingContext, config) =>
{
config.AddAppSettingsFromDockerSecrets();
})
.ConfigureServices(services =>
{
services.AddResponseCompression();
services.AddResponseCaching();
})
.Configure(app =>
{
app.UseResponseCompression();
app.UseResponseCaching();
app.Use(async (context, next) =>
{
context.Response.GetTypedHeaders().CacheControl = new CacheControlHeaderValue()
{
Public = true,
MaxAge = TimeSpan.FromSeconds(5),
};
context.Response.Headers[HeaderNames.Vary] = new string[] { "Accept-Encoding" };
await next();
});
})
.UseStartup<Startup>();
}
public static void Main(string[] args)
{
CreateWebHostBuilder(args).Build().Run();
}
}
// Startup.cs
public class Startup
{
public Startup(IConfiguration configuration, ILogger<Startup> logger)
{
this.Configuration = configuration;
this.Logger = logger;
}
public IConfiguration Configuration { get; }
public ILogger Logger { get; }
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
else
{
app.UseHsts();
}
app.UseHttpsRedirection();
app.UseStaticFiles();
app.UseSpaStaticFiles();
app.UseMvc(routes =>
{
routes.MapRoute(
name: "default",
template: "{controller}/{action=Index}/{id?}");
});
app.UseSpa(spa =>
{
spa.Options.SourcePath = "ClientApp";
if (env.IsDevelopment())
{
spa.UseReactDevelopmentServer(npmScript: "start");
}
});
}
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
// In production, the React files will be served from this directory
services.AddSpaStaticFiles(configuration =>
{
configuration.RootPath = "ClientApp/build";
});
}
}