关于c＃：无法加载http：// localhost：5000 / .well-known / openid-configuration：请求的资源上没有’Access-Control-Allow-Origin’标头

Failed to load http://localhost:5000/.well-known/openid-configuration: No 'Access-Control-Allow-Origin' header is present on the requested resource

我是IdentityServer4的新手，最近我看到IdentityServer团队提供的QuickStart8示例，其中包括3个项目1.IdentityServer2。API 3.客户端在浏览器中工作正常，当我部署到IIS时，它们工作不正常，显示错误，如…

enter image description here

我正在使用javascript客户端…

请帮我解决这个问题。

这是我的密码…

api(启动.cs)

1	using Microsoft.AspNetCore.Builder;

使用Microsoft.Extensions.DependencyInjection；

命名空间API{公共类启动{公共void配置服务(ISeviceCollection服务){services.addmvcore()。.addauthorization()。.addjsonFormatters()；

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services.AddAuthentication("Bearer")
.AddIdentityServerAuthentication(options =>
{
options.Authority ="http://localhost:5000";
options.RequireHttpsMetadata = false;

options.ApiName ="api1";
});

services.AddCors(options =>
{
// this defines a CORS policy called"default"
options.AddPolicy("default", policy =>
{
policy.WithOrigins("http://localhost:5003")
.AllowAnyHeader()
.AllowAnyMethod();
});
});
}

public void Configure(IApplicationBuilder app)
{
app.UseCors("default");

app.UseAuthentication();

app.UseMvc();
}
}

}

API(身份控制器)

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[Route("[controller]")]
[Authorize]
public class IdentityController : ControllerBase
{
[HttpGet]
public IActionResult Get()
{
return new JsonResult(from c in User.Claims select new { c.Type, c.Value });
}
}

QuickStartIdentityServer(startup.cs)

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public class Startup
{

public void ConfigureServices(IServiceCollection services)
{
services.AddMvc();

string connectionString = @"Data Source=DOTNET-Foo;Initial Catalog=IdentityServer4;Integrated Security=True";
var migrationsAssembly = typeof(Startup).GetTypeInfo().Assembly.GetName().Name;

// configure identity server with in-memory stores, keys, clients and scopes
services.AddIdentityServer()
.AddDeveloperSigningCredential()
.AddTestUsers(Config.GetUsers())
// this adds the config data from DB (clients, resources)
.AddConfigurationStore(options =>
{
options.ConfigureDbContext = builder =>
builder.UseSqlServer(connectionString,
sql => sql.MigrationsAssembly(migrationsAssembly));
});
// this adds the operational data from DB (codes, tokens, consents)
//.AddOperationalStore(options =>
//{
// options.ConfigureDbContext = builder =>
// builder.UseSqlServer(connectionString,
// sql => sql.MigrationsAssembly(migrationsAssembly));

// // this enables automatic token cleanup. this is optional.
// options.EnableTokenCleanup = true;
// options.TokenCleanupInterval = 30;
//});

services.AddAuthentication()
.AddGoogle("Google", options =>
{
options.SignInScheme = IdentityServerConstants.ExternalCookieAuthenticationScheme;

options.ClientId ="434483408261-55tc8n0cs4ff1fe21ea8df2o443v2iuc.apps.googleusercontent.com";
options.ClientSecret ="3gcoTrEDPPJ0ukn_aYYT6PWo";
})
.AddOpenIdConnect("oidc","OpenID Connect", options =>
{
options.SignInScheme = IdentityServerConstants.ExternalCookieAuthenticationScheme;
options.SignOutScheme = IdentityServerConstants.SignoutScheme;

options.Authority ="https://demo.identityserver.io/";
options.ClientId ="implicit";

options.TokenValidationParameters = new TokenValidationParameters
{
NameClaimType ="name",
RoleClaimType ="role"
};
});

}

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
// IdentityServerDatabaseInitialization.InitializeDatabase(app);
}
app.UseIdentityServer();
app.UseStaticFiles();
app.UseMvcWithDefaultRoute();
}
}

我无法访问http://localhost:5000/。已知/openid配置

enter image description here