How to disable Blazor server side pre-render?

To disable server side pre-render on asp.net core preview 3, you just needed to comment @(await Html.RenderComponentAsync<MyApp>()).

Since asp.net core preview 4, when you comment this line, the page doesn't render and on the main component @page "/", the tag <app> remains blank.

So, how can we disable server side pre-render ?

Finally found a solution by cores-system in github Source: https://github.com/aspnet/AspNetCore/issues/9584#issuecomment-485257261

app.UseEndpoints(endpoints =>
{
   endpoints.MapBlazorHub().AddComponent<App>(selector: "app");
   endpoints.MapFallbackToFile("index.html"); // or - endpoints.MapFallbackToPage("/_Host");
});

Hope this works...