IdentityServer4授权代码流：authorized_client

Question

嗨，我正在尝试在IdentityServer4中获取authorization_code和pkce代码流。

我已经将客户注册为

new Client
                {
                    ClientId = "client123",
                    ClientName = "My Super Secret Client Id",
                    AllowedGrantTypes = GrantTypes.Hybrid,

                    ClientSecrets =
                    {
                        new Secret("secret".Sha256())
                    },

                    RedirectUris = { "http://localhost:5000" },
                    PostLogoutRedirectUris = { "http://localhost:5002/signout-callback-oidc" },

                    AllowedScopes =
                    {
                        IdentityServerConstants.StandardScopes.OpenId,
                        IdentityServerConstants.StandardScopes.Profile,
                        "api1"
                    },
                    AllowOfflineAccess = true
                }

我的要求如下：

POST /connect/authorize HTTP/1.1
Host: localhost:5000
Content-Type: application/x-www-form-urlencoded
Authorization: Basic Y2xpZW50MTIzOjJCQjgwRDUzN0IxREEzRTM4QkQzMDM2MUFBODU1Njg2QkRFMEVBQ0Q3MTYyRkVGNkEyNUZFOTdCRjUyN0EyNUI=
Cache-Control: no-cache
Postman-Token: fa61ca5a-0f04-418f-a68c-4bb7a7a85120

client_id=client123&scope=openid&response_type=code&redirect_uri=http%3A%2F%2Flocalhost%3A5000&state=abc&nonce=xyz

在响应中，当我将Sorry, there was an error : unauthorized_client替换为AllowedGrantTypes = GrantTypes.HybridAndClientCredentials时，我得到了AllowedGrantTypes = GrantTypes.CodeAndClientCredentials的html页面，出现了同样的错误。我有什么想念的吗？