Fix civitai login dialog not showing when needed

CHANGELOG.md

@@ -12,6 +12,7 @@ and this project adheres to [Semantic Versioning 2.0](https://semver.org/spec/v2
 - (Internal) Updated to Avalonia 11.0.9
 ### Fixed
 - Fixed image viewer dialog arrow key navigation not working
+- Fixed CivitAI login prompt not showing when downloading models that require CivitAI logins
 
 ## v2.9.0-pre.1
 ### Added

StabilityMatrix.Core/Services/DownloadService.cs

@@ -1,4 +1,5 @@
-using System.Net.Http.Headers;
+using System.Net;
+using System.Net.Http.Headers;
 using Microsoft.Extensions.Logging;
 using Polly.Contrib.WaitAndRetry;
 using StabilityMatrix.Core.Attributes;
@@ -184,6 +185,10 @@ public class DownloadService : IDownloadService
                     throw new UnauthorizedAccessException();
                 }
             }
+            else if (noRedirectResponse.StatusCode == HttpStatusCode.Unauthorized)
+            {
+                throw new UnauthorizedAccessException();
+            }
 
             using var redirectRequest = new HttpRequestMessage();
             redirectRequest.Method = HttpMethod.Get;