IdentityServer4 + asp.net核心API：无法访问userinfo端点

Question

我使用的是IdentityServer4 + asp.net核心API。在客户端，我使用angular-cli。

这是客户定义的：

这是资源定义：

这是测试用户定义的：

在ConfigServices中

public void ConfigureServices(IServiceCollection services)
    {
        // Add framework services.
        services.AddMvc();
        // Enable CORS.
        CorsPolicyBuilder corsBuilder = new CorsPolicyBuilder()
            .AllowAnyHeader()
            .AllowAnyMethod()
            .AllowAnyOrigin()
            .AllowCredentials();
        services.AddCors(opts =>
        {
            opts.AddPolicy("AllowAllOrigins", corsBuilder.Build());
        });

        services.UseSimpleInjectorAspNetRequestScoping(container);
        // identityserver4 configuration
        services.AddIdentityServer()
                .AddTemporarySigningCredential()
                .AddInMemoryClients(Clients.Get())
                .AddInMemoryIdentityResources(Resources.GetIdentityResources())
                .AddInMemoryApiResources(Resources.GetApiResources())
                .AddTestUsers(Users.Get());

        // Zip response
        services.Configure<GzipCompressionProviderOptions>(opts => opts.Level = CompressionLevel.Optimal);
        services.AddResponseCompression(opts =>
        {
            opts.EnableForHttps = false;
            opts.MimeTypes = ResponseCompressionDefaults.MimeTypes.Concat(
                new[]
                {
                    "image/svg+xml",
                    "application/atom+xml"
                });
            opts.Providers.Add<GzipCompressionProvider>();
        });

        // Adds services required for using options.
        services.AddOptions();

        // Register the IConfiguration instance which MyOptions binds against.
        services.Configure<ConfigModel>(Configuration);
    }

这是配置：

public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory, IOptions<ConfigModel> optionsAccessor)
    {
        loggerFactory.AddConsole(Configuration.GetSection("Logging"));
        loggerFactory.AddDebug();

        app.UseIdentityServer();
        app.UseMiddleware(typeof(ErrorHandlingMiddleware));
        var url = optionsAccessor.Value.SystemConfig.Authority;
        app.UseIdentityServerAuthentication(new IdentityServerAuthenticationOptions
        {
            Authority = url,
            RequireHttpsMetadata = false,
            ApiName = Definitions.WebApiScope/*,
            AllowedScopes = { Definitions.WebApiScope }*/
        });
        app.UseCors("AllowAllOrigins");
        app.UseResponseCompression();
        app.UseMvcWithDefaultRoute();

        // register service
        //DependencyRegistrator.RegisterServices(app, container);
        //container.Verify();
        app.UseMvc();
    }

我可以使用令牌端点来检索access_token，并将其用于请求userinfo端点。这是标题：

authJsonHeaders() {
const header = new Headers();
header.append('Content-Type', 'application/json');
header.append('Accept', 'application/json');
header.append('Authorization', 'Bearer ' + localStorage.getItem('id_token'));
return header;

}

但我总是收到错误Response for preflight has invalid HTTP status code 405

我失踪了什么？ 提前致谢