Trouble with Microsoft Authentication Popup not closing when using with Oidc

[HariniGamageCS]

Platform: wasm

When using Oidc as specified in the documentation and using Microsoft authentication as the provider, we are getting the below error after login success.

System.NullReferenceException: Object reference not set to an instance of an object.
   at IdentityModel.Client.AuthorizeResponse.ParseRaw()
   at IdentityModel.Client.AuthorizeResponse..ctor(String raw)
   at IdentityModel.OidcClient.OidcClient.ProcessResponseAsync(String data, AuthorizeState state, Parameters backChannelParameters, CancellationToken cancellationToken) in /_/src/OidcClient/OidcClient.cs:line 187
   at IdentityModel.OidcClient.OidcClient.LoginAsync(LoginRequest request, CancellationToken cancellationToken) in /_/src/OidcClient/OidcClient.cs:line 87
   at Uno.Extensions.Authentication.Oidc.OidcAuthenticationProvider.InternalLoginAsync(IDispatcher dispatcher, IDictionary`2 credentials, CancellationToken cancellationToken)
   at Uno.Extensions.Authentication.BaseAuthenticationProvider.LoginAsync(IDispatcher dispatcher, IDictionary`2 credentials, CancellationToken cancellationToken)
   at Uno.Extensions.Authentication.AuthenticationService.LoginAsync(IDispatcher dispatcher, IDictionary`2 credentials, String provider, Nullable`1 cancellationToken)
   at UnoAppAuth.Presentation.LoginModel.Login(CancellationToken token) in D:\Projects\UnoAppAuth\UnoAppAuth\Presentation\LoginModel.cs:line 12

This results in the popup not closing and the redirect url opening up in the popup window.

[kazo0]

@HariniGamageCS Are you targeting net9.0? There is currently an issue with net9 that is causing this: unoplatform/uno.extensions#2692

The fix is in net10.0. If you were to target net10.0 instead does it work?

[HariniGamageCS]

Tried with .NET 10 and I ended up with the error :System.InvalidOperationException: JsonSerializerIsReflectionDisabled and the login popup didn't open up this time.

My issue seems to be the same as this

I also noticed that we don't have samples for authentication for v6 and all the samples I could find were still in v5. Which makes it difficult to get some reference too. :-/

[kazo0]

@HariniGamageCS Yes this is indeed the same issue.

As a quick workaround, if you set <JsonSerializerIsReflectionEnabledByDefault>true</JsonSerializerIsReflectionEnabledByDefault> in your .csproj it will avoid that error. This is just a temporary workaround to be able to test that auth works. We can push out an update to avoid Json Serializer reflection in this scenario.

We will be updating our samples for Auth to use the latest Uno.SDK and Uno.Extensions, I will keep you updated when those are published. In the meantime, the TestHarness application inside of the Uno.Extensions repo is what is currently being used to test Auth. You can find the relevant OIDC sample code inside the TestHarness app here: https://github.com/unoplatform/uno.extensions/tree/main/testing/TestHarness/TestHarness/Ext/Authentication/Oidc

[HariniGamageCS]

@kazo0 That workaround seemed to have done the trick. Thanks!