blazoraspnetcore-environment

Blazor WASM Environment is always Production

I have a .Net 8 Blazor Web App and the client's builder.HostEnvironment.Environment is always (locally and on Azure) set to 'Production' even if the Server builder.Environment is set to 'Development'

Why? I don't know about anywhere in the client project where I set it to 'Production'.

Solution

  • Using 'DebugLocal' instead of 'Debug' solved it.

    enter image description here

    ---EDIT---

    This solution is not working for me anymore (I think since I've updated to dotnet 8.0.8).

    It looks like the issue is that for some reason, the blazor-environment header is not being set from the server, doing it from code solved it for me.

    Need to insert this code before app.UseStaticFiles();

    var env = app.Environment.EnvironmentName;
app.Use((context, next) =>
{
    var url = context.Request.GetEncodedUrl();
    if (url.EndsWith("blazor.boot.json"))
    {
        context.Response.Headers.Append("blazor-environment", env);
    }

    return next(context);
});

    For Request.GetEncodedUrl() to work, you need using Microsoft.AspNetCore.Http.Extensions;

    See: https://github.com/dotnet/aspnetcore/issues/25152#issuecomment-2344329700