Msal Auth stopped working on live environment - NullabilityInfoContext_NotSupported

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#118,333 opened on Jan 10, 2025 24 comments 3 reactions 1 assignee View on GitHub

@eiriktsarpalis is already working on this.

Since Aug 31, 2025.

Assessment

This issue has not been assessed yet.

Description

area-System.Text.Json regression-from-last-release

Is there an existing issue for this?

I have searched the existing issues

Describe the bug

I randomly started hitting a NullabilityInfoContext_NotSupported exception in live environments with the auth package Microsoft.Authentication.WebAssembly.Msal which lives within this repo.

It might have been due to a recent update to the nuget package, but not entirely sure on that.

Our project is a Blazor wasm standalone app, which we are hosting on azure static sites.

This was a bug present in our live deployments, but never present on local builds.

After a lot of digging into it, we have resolved the issue by adding the following to our csproj:

<NullabilityInfoContextSupport>true</NullabilityInfoContextSupport>

We had never previously needed this in the csproj, so am wondering what has changed to suddenly need this now. I also have found no mention of others having the same issue, which worries me that we might have done something unintended as I would expect to see reports regarding this if something had changed beyond our scope.

Whilst I have a fix, I am interested to know why this happened in the first place, and also how we could have possibly known to prevent this in advance etc.

Expected Behavior

No response

Steps To Reproduce

Just a standard project, but deployed somewhere and using Microsoft.Authentication.WebAssembly.Msal for auth.

Exceptions (if any)

Error

``` crit: Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100] Unhandled exception rendering component: NullabilityInfoContext_NotSupported System.InvalidOperationException: NullabilityInfoContext_NotSupported at System.Reflection.NullabilityInfoContext.EnsureIsSupported() at System.Reflection.NullabilityInfoContext.Create(PropertyInfo ) at System.Text.Json.Serialization.Metadata.DefaultJsonTypeInfoResolver.DeterminePropertyNullability(JsonPropertyInfo , MemberInfo , NullabilityInfoContext ) at System.Text.Json.Serialization.Metadata.DefaultJsonTypeInfoResolver.PopulatePropertyInfo(JsonPropertyInfo , MemberInfo , JsonConverter , Nullable`1 , NullabilityInfoContext , Boolean , Boolean ) at System.Text.Json.Serialization.Metadata.DefaultJsonTypeInfoResolver.CreatePropertyInfo(JsonTypeInfo , Type , MemberInfo , NullabilityInfoContext , JsonSerializerOptions , Boolean , Boolean ) at System.Text.Json.Serialization.Metadata.DefaultJsonTypeInfoResolver.AddMember(JsonTypeInfo , Type , MemberInfo , NullabilityInfoContext , Boolean , Boolean , PropertyHierarchyResolutionState& ) at System.Text.Json.Serialization.Metadata.DefaultJsonTypeInfoResolver.AddMembersDeclaredBySuperType(JsonTypeInfo , Type , NullabilityInfoContext , Boolean , PropertyHierarchyResolutionState& ) at System.Text.Json.Serialization.Metadata.DefaultJsonTypeInfoResolver.PopulateProperties(JsonTypeInfo , NullabilityInfoContext ) at System.Text.Json.Serialization.Metadata.DefaultJsonTypeInfoResolver.CreateTypeInfoCore(Type , JsonConverter , JsonSerializerOptions ) at System.Text.Json.Serialization.Metadata.DefaultJsonTypeInfoResolver.CreateJsonTypeInfo(Type , JsonSerializerOptions ) at System.Text.Json.Serialization.Metadata.DefaultJsonTypeInfoResolver.GetTypeInfo(Type , JsonSerializerOptions ) at System.Text.Json.JsonSerializerOptions.GetTypeInfoNoCaching(Type ) at System.Text.Json.JsonSerializerOptions.CachingContext.CreateCacheEntry(Type type, CachingContext context) --- End of stack trace from previous location --- at System.Text.Json.JsonSerializerOptions.CachingContext.CacheEntry.GetResult() at System.Text.Json.JsonSerializerOptions.CachingContext.GetOrAddTypeInfo(Type , Boolean ) at System.Text.Json.JsonSerializerOptions.GetTypeInfoInternal(Type , Boolean , Nullable`1 , Boolean , Boolean ) at System.Text.Json.WriteStackFrame.InitializePolymorphicReEntry(Type , JsonSerializerOptions ) at System.Text.Json.Serialization.JsonConverter.ResolvePolymorphicConverter(Object , JsonTypeInfo , JsonSerializerOptions , WriteStack& ) at System.Text.Json.Serialization.JsonConverter`1[[System.Object, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].TryWrite(Utf8JsonWriter , Object& , JsonSerializerOptions , WriteStack& ) at System.Text.Json.Serialization.Converters.ArrayConverter`2[[System.Object[], System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.Object, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].OnWriteResume(Utf8JsonWriter , Object[] , JsonSerializerOptions , WriteStack& ) at System.Text.Json.Serialization.JsonCollectionConverter`2[[System.Object[], System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.Object, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].OnTryWrite(Utf8JsonWriter , Object[] , JsonSerializerOptions , WriteStack& ) at System.Text.Json.Serialization.JsonConverter`1[[System.Object[], System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].TryWrite(Utf8JsonWriter , Object[]& , JsonSerializerOptions , WriteStack& ) at System.Text.Json.Serialization.JsonConverter`1[[System.Object[], System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].WriteCore(Utf8JsonWriter , Object[]& , JsonSerializerOptions , WriteStack& ) at System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[[System.Object[], System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].Serialize(Utf8JsonWriter , Object[]& , Object ) at System.Text.Json.JsonSerializer.WriteString[Object[]](Object[]& , JsonTypeInfo`1 ) at System.Text.Json.JsonSerializer.Serialize[Object[]](Object[] , JsonSerializerOptions ) at Microsoft.JSInterop.JSRuntime.InvokeAsync[IJSVoidResult](Int64 , String , CancellationToken , Object[] ) at Microsoft.JSInterop.JSRuntime.d__16`1[[Microsoft.JSInterop.Infrastructure.IJSVoidResult, Microsoft.JSInterop, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext() at Microsoft.JSInterop.JSRuntimeExtensions.InvokeVoidAsync(IJSRuntime , String , Object[] ) at Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationService`3.d__30[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=8.0.11.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteUserAccount, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=8.0.11.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.Authentication.WebAssembly.Msal.Models.MsalProviderOptions, Microsoft.Authentication.WebAssembly.Msal, Version=8.0.11.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext() at Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationService`3.d__29[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=8.0.11.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteUserAccount, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=8.0.11.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.Authentication.WebAssembly.Msal.Models.MsalProviderOptions, Microsoft.Authentication.WebAssembly.Msal, Version=8.0.11.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext() at Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationService`3.d__28[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=8.0.11.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteUserAccount, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=8.0.11.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.Authentication.WebAssembly.Msal.Models.MsalProviderOptions, Microsoft.Authentication.WebAssembly.Msal, Version=8.0.11.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext() at Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationService`3.d__19[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=8.0.11.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteUserAccount, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=8.0.11.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.Authentication.WebAssembly.Msal.Models.MsalProviderOptions, Microsoft.Authentication.WebAssembly.Msal, Version=8.0.11.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext() at Microsoft.AspNetCore.Components.Authorization.AuthorizeViewCore.OnParametersSetAsync() at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task) at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync() ```

.NET Version

Anything else?

We are using version 8.0.11 of the nuget package Microsoft.Authentication.WebAssembly.Msal.

Dominant language: C#
Stars: 18.3k
Forks: 5.6k
PR merge metrics: PR metrics pending

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