[Bug] Cannot resolve scoped service when Debug via Visual Studio on Windows - Works using Linux Container

[Johno-ACSLive]

Microsoft.Identity.Web Library

Microsoft.Identity.Web.DownstreamApi

Microsoft.Identity.Web version

2.18.1

Web app

Sign-in users and call web APIs

Web API

Protected web APIs call downstream web APIs

Token cache serialization

In-memory caches

Description

Using Microsoft Identity Abstractions version 5.3.0 via Microsoft.Identity.Web.DownstreamApi version 2.18.1, the call to app.MapWebPubSubHub<webpubsub>("/eventhandler/{*path}"); triggers System.InvalidOperationException: 'Cannot resolve scoped service 'Microsoft.Identity.Abstractions.IDownstreamApi' from root provider.' only when debugging via Visual Studio (latest version - 17.9.6) on Windows.

When run in a Linux Container the app runs fine.

I initially logged the bug in the abstractions library https://github.com/AzureAD/microsoft-identity-abstractions-for-dotnet/issues/128

Reproduction steps

Debug an ASP.NET 8.0 application using multiple IDP's and Azure Web PubSub.

// IDP 1
builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
                .AddMicrosoftIdentityWebApi(builder.Configuration.GetSection("EntraExternalID"))
                .EnableTokenAcquisitionToCallDownstreamApi()
                .AddDownstreamApi("ServiceA", builder.Configuration.GetSection("ServiceA"))
                .AddDownstreamApi("ServiceB", builder.Configuration.GetSection("ServiceB"))
                .AddInMemoryTokenCaches();

// IDP 2
builder.Services.AddAuthentication().AddMicrosoftIdentityWebApi(builder.Configuration.GetSection("EntraID"), "EntraID");

// Add Web PubSub Service Client
builder.Services.AddWebPubSub(options =>
{
    var config = builder.Configuration.GetSection("Config").Get<Configuration<Config>>();
    options.ServiceEndpoint = new WebPubSubServiceEndpoint(config.ConnectionString);
}).AddWebPubSubServiceClient<webpubsub>();

// standard init in between e.g. var app = builder.Build();

// Further down map web pubsub event handler
app.UseAuthentication();
app.UseAuthorization();
app.MapControllers();
app.MapWebPubSubHub<webpubsub>("/eventhandler/{*path}");
app.Run();

Error message

System.InvalidOperationException: 'Cannot resolve scoped service 'Microsoft.Identity.Abstractions.IDownstreamApi' from root provider.'

Id Web logs

No response

Relevant code snippets

As per reproduction steps.

Regression

No response

Expected behavior

Error is not observed when debugging on Windows via Visual Studio.