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Error when using auth with prerendering after trimming
See original GitHub issueIs there an existing issue for this?
- I have searched the existing issues
Describe the bug
I have a Blazor app which is prerendered and uses a third party Oidc provider for auth (Auth0).
I’ve encountered an issue with .NET 7 RC1 where, after trimming the app for production, I run into this error:
crit: Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100]
Unhandled exception rendering component: ConstructorContainsNullParameterNames, Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationService`3+JavaScriptLoggingOptions[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState,Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteUserAccount,Microsoft.AspNetCore.Components.WebAssembly.Authentication.OidcProviderOptions] SerializationNotSupportedParentType, System.Object Path: $.
System.NotSupportedException: ConstructorContainsNullParameterNames, Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationService`3+JavaScriptLoggingOptions[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState,Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteUserAccount,Microsoft.AspNetCore.Components.WebAssembly.Authentication.OidcProviderOptions] SerializationNotSupportedParentType, System.Object Path: $.
---> System.NotSupportedException: ConstructorContainsNullParameterNames, Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationService`3+JavaScriptLoggingOptions[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState,Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteUserAccount,Microsoft.AspNetCore.Components.WebAssembly.Authentication.OidcProviderOptions]
at System.Text.Json.ThrowHelper.ThrowNotSupportedException_ConstructorContainsNullParameterNames(Type )
at System.Text.Json.Serialization.Metadata.ReflectionJsonTypeInfo`1[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationService`3.JavaScriptLoggingOptions[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],
The client app is set up to use Oidc Authentication (via Auth0) like so:
ClientApp\Program.cs
builder.Services.AddAuthorizationCore().AddOidcAuthentication(options =>
{
builder.Configuration.Bind("Auth0", options.ProviderOptions);
options.ProviderOptions.ResponseType = "code";
options.ProviderOptions.AdditionalProviderParameters.Add("audience", "https://practical-dot-net.io");
});
The server app has the following configuration (to ensure the app doesn’t fall over when prerendering).
ServerApp\Program.cs
...
builder.Services.AddApiAuthorization();
builder.Services.AddTransient<IJSRuntime, NullJSRuntime>();
...
Where NullJsRuntime is a simple class which does nothing (apart from returning ValueTasks).
public class NullJSRuntime : IJSRuntime
{
public ValueTask<TValue> InvokeAsync<TValue>(string identifier, object[] args)
{
return new ValueTask<TValue>();
}
public ValueTask<TValue> InvokeAsync<TValue>(string identifier, CancellationToken cancellationToken, object[] args)
{
return new ValueTask<TValue>();
}
}
_Host.cshtml is configured to skip prerendering when attempting to access any Urls which begin with /authentication for good measure…
_Host.cshtml
@if (HttpContext.Request.Path.StartsWithSegments("/authentication"))
{
<component type="typeof(App)" render-mode="WebAssembly" />
}
else
{
<component type="typeof(App)" render-mode="WebAssemblyPrerendered" />
}
If I publish this (with linking/trimming enabled) and run the app I get the error mentioned above.
Expected Behavior
The app runs without error, after linking, when prerendering and integrating with a third party auth provider.
Steps To Reproduce
Clone https://github.com/Jon-Hilton/BlazorPreRenderAuthIssue
Enter valid OIDC server values for Authority and ClientId in Client\wwwroot\appsettings.json:
https://github.com/Jon-Hilton/BlazorPreRenderAuthIssue/blob/master/Client/wwwroot/appsettings.json
You may also need to update the audience as configured in Client\Program.cs here:
With OIDC configured, now:
- Publish BlazorApp1.Server
- Launch the published app
- Observe error in console
Exceptions (if any)
crit: Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100]
Unhandled exception rendering component: ConstructorContainsNullParameterNames, Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationService3+JavaScriptLoggingOptions[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState,Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteUserAccount,Microsoft.AspNetCore.Components.WebAssembly.Authentication.OidcProviderOptions] SerializationNotSupportedParentType, System.Object Path: $. System.NotSupportedException: ConstructorContainsNullParameterNames, Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationService3+JavaScriptLoggingOptions[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState,Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteUserAccount,Microsoft.AspNetCore.Components.WebAssembly.Authentication.OidcProviderOptions] SerializationNotSupportedParentType, System.Object Path: $.
—> System.NotSupportedException: ConstructorContainsNullParameterNames, Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationService3+JavaScriptLoggingOptions[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState,Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteUserAccount,Microsoft.AspNetCore.Components.WebAssembly.Authentication.OidcProviderOptions] at System.Text.Json.ThrowHelper.ThrowNotSupportedException_ConstructorContainsNullParameterNames(Type ) at System.Text.Json.Serialization.Metadata.ReflectionJsonTypeInfo1[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationService3.JavaScriptLoggingOptions[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteUserAccount, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.AspNetCore.Components.WebAssembly.Authentication.OidcProviderOptions, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]], Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].GetParameterInfoValues() at System.Text.Json.Serialization.Metadata.JsonTypeInfo.Configure() at System.Text.Json.Serialization.Metadata.JsonTypeInfo.<EnsureConfigured>g__ConfigureLocked|138_0() --- End of stack trace from previous location --- at System.Text.Json.Serialization.Metadata.JsonTypeInfo.<EnsureConfigured>g__ConfigureLocked|138_0() at System.Text.Json.Serialization.Metadata.JsonTypeInfo.EnsureConfigured() at System.Text.Json.JsonSerializerOptions.GetTypeInfoInternal(Type , 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.JsonConverter1[[System.Object, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].TryWrite(Utf8JsonWriter , Object& , JsonSerializerOptions , WriteStack& )
at System.Text.Json.Serialization.Converters.ArrayConverter2[[System.Object[], System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.Object, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].OnWriteResume(Utf8JsonWriter , Object[] , JsonSerializerOptions , WriteStack& ) at System.Text.Json.Serialization.JsonCollectionConverter2[[System.Object[], System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.Object, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].OnTryWrite(Utf8JsonWriter , Object[] , JsonSerializerOptions , WriteStack& )
at System.Text.Json.Serialization.JsonConverter1[[System.Object[], System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].TryWrite(Utf8JsonWriter , Object[]& , JsonSerializerOptions , WriteStack& ) at System.Text.Json.Serialization.JsonConverter1[[System.Object[], System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].WriteCore(Utf8JsonWriter , Object[]& , JsonSerializerOptions , WriteStack& )
Exception_EndOfInnerExceptionStack
at System.Text.Json.ThrowHelper.ThrowNotSupportedException(WriteStack& , NotSupportedException )
at System.Text.Json.Serialization.JsonConverter1[[System.Object[], System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].WriteCore(Utf8JsonWriter , Object[]& , JsonSerializerOptions , WriteStack& ) at System.Text.Json.JsonSerializer.WriteCore[Object[]](Utf8JsonWriter , Object[]& , JsonTypeInfo1 )
at System.Text.Json.JsonSerializer.WriteString[Object[]](Object[]& , JsonTypeInfo1 ) at System.Text.Json.JsonSerializer.Serialize[Object[]](Object[] , JsonSerializerOptions ) at Microsoft.JSInterop.JSRuntime.InvokeAsync[IJSVoidResult](Int64 , String , CancellationToken , Object[] ) at Microsoft.JSInterop.JSRuntime.<InvokeAsync>d__161[[Microsoft.JSInterop.Infrastructure.IJSVoidResult, Microsoft.JSInterop, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext()
at Microsoft.JSInterop.JSRuntimeExtensions.InvokeVoidAsync(IJSRuntime , String , Object[] )
at Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationService3.<EnsureAuthService>d__29[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteUserAccount, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.AspNetCore.Components.WebAssembly.Authentication.OidcProviderOptions, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext() at Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationService3.<SignInAsync>d__20[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteUserAccount, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.AspNetCore.Components.WebAssembly.Authentication.OidcProviderOptions, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext()
at Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticatorViewCore1.<ProcessLogIn>d__84[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext() at Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticatorViewCore1.<OnParametersSetAsync>d__83[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext()
at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)
at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync()
.NET Version
7.0.100-rc.1.22431.12
Anything else?
No response
Issue Analytics
- State:
- Created a year ago
- Reactions:6
- Comments:13 (5 by maintainers)
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Same problem here, exception occurs only after publish, debug version works fine. .Net Version 7.0.100-rc.1.22431.12 Microsoft.AspNetCore.Components.WebAssembly.Authentication 7.0.0-rc.1.22427.2 OAuth server: Keycloak
I’ve exactly same problem. My hosted Blazor WASM doesn’t use any prerendering and authenticate with IdentityServer4.
.NET Version 7.0.100-rc.1.22431.12