Polly timeout in Blazor WASM Application HttpClient

New to .Net and Blazor. I am trying to extend the timeout of my HTTPClient call (I assume) in my Blazor application. No matter what I do the timeout happens after 10 seconds and a retry initiated, which can be annoying when debugging. I assume this is an HTTPClient timeout, but no matter what I try it seems to timeout after 10 seconds. I check the timeout before the HTTP call and it seems to be the time I set, but it still times out. Am I incorrectly setting the HTTP timeout or is something in Blazor timing out instead?

The code to set the HTTP Client timeout in the Blazor program.cs:

var builder = WebApplication.CreateBuilder(args);// Add service defaults & Aspire components.builder.AddServiceDefaults();// Add services to the container.builder.Services.AddRazorComponents().AddInteractiveServerComponents();builder.Services.AddOutputCache();builder.Services.ConfigureApplicationCookie(ops =>{    ops.ExpireTimeSpan = TimeSpan.FromMinutes(30);    ops.SlidingExpiration = true;});builder.Services.AddHttpClient<ModelApiClient>(client =>{    // This URL uses "https+http://" to indicate HTTPS is preferred over HTTP.    // Learn more about service discovery scheme resolution at https://aka.ms/dotnet/sdschemes.    client.BaseAddress = new("https+http://myapipath/");    client.Timeout = TimeSpan.FromMinutes(10);}).SetHandlerLifetime(TimeSpan.FromMinutes(10));

In the Extensions.cs (auto generated when I created the solution) I have:

public static class Extensions{    public static IHostApplicationBuilder AddServiceDefaults(this IHostApplicationBuilder builder)    {        builder.ConfigureOpenTelemetry();        builder.AddDefaultHealthChecks();        builder.Services.AddServiceDiscovery();        builder.Services.ConfigureHttpClientDefaults(http =>        {            // Turn on resilience by default            http.AddStandardResilienceHandler();            // Turn on service discovery by default            http.AddServiceDiscovery();        });        return builder;    }

The actual call in the razor file looks like this:

 Debug.WriteLine("Timeout: " + httpClient.Timeout.TotalMinutes); var response = await httpClient.PostAsJsonAsync("/api/whatever", singleModel); 

But invariably the call is stopped with this error:

Polly: Warning: Execution attempt. Source: '-standard//Standard-Retry', Operation Key: '', Result: 'The operation didn't complete within the allowed timeout of '00:00:10'.', Handled: 'True', Attempt: '0', Execution Time: 11134.0462msPolly.Timeout.TimeoutRejectedException: The operation didn't complete within the allowed timeout of '00:00:10'. ---> System.Threading.Tasks.TaskCanceledException: The operation was canceled. ---> System.IO.IOException: Unable to read data from the transport connection: The I/O operation has been aborted because of either a thread exit or an application request.. ---> System.Net.Sockets.SocketException (995): The I/O operation has been aborted because of either a thread exit or an application request.   --- End of inner exception stack trace ---

Is this an HTTPClient issue or something else?

Tried to extend the life of the HTTPClient call to 10 minutes, but still cancelled after 10 seconds.