ASP.NET Core - static web assests from nuget package (Radzen.Blazor, Microsoft Identity) load only when environment is Development, not when Staging.

Question

I have a ASP.NET Core Blazor Server with Identity.
When I run in the Development environment ("ASPNETCORE_ENVIRONMENT": "Development"), everything works as expected. Specifically, the static web assest such as css and js files are loaded. Example: "~/Identity/css/site.css", "~/Identity/lib/jquery-validation/dist/jquery.validate.min.js".
But when I change the environment to Staging, all the files in "~/Identity/..." path are not found, returning 404 error. And it is not just my project. I created a brand new scaffolded Blazor app with Identity, and it behaves exactly the same. It appears Staging somehow affects sdk to not include embeded resources from .nuget.

Any ideas why? And how to fix it?

Answer 1

Hi @panpawel ,

The static web assets are enabled by default in the Development environment. To support assets in other environments when running from build output, call UseStaticWebAssets on the host builder in Program.cs:

    public static IHostBuilder CreateHostBuilder(string[] args) =>  
        Host.CreateDefaultBuilder(args)  
            .ConfigureWebHostDefaults(webBuilder =>  
            {  
                webBuilder.UseStaticWebAssets();   
                webBuilder.UseStartup<Startup>();  
            });  

After that, the result as below:

Reference: Consume content from a referenced RCL

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