By default, ASP.NET does not allow applications to be accessed remotely. This means that the in-lesson web browser will not be able to access the application, as it is technically running outside of the sandbox environment.
To address this, add a
UseUrls statement, as shown below:
public static IWebHost BuildWebHost(string args) =>WebHost.CreateDefaultBuilder(args).UseUrls("http://*:5000").UseStartup<Startup>().Build();}
You can then use
dotnet run to start your application.