AngularASPNETCoreOAuth: Login does not work

After login, it stays there, not go back to spa site and I can see this in the log. Any idea?

2019-09-29 11:27:40.482 -07:00 [DBG] Augmenting SignInContext
2019-09-29 11:27:40.486 -07:00 [DBG] Adding idp claim with value: local
2019-09-29 11:27:40.487 -07:00 [DBG] Adding amr claim with value: pwd
2019-09-29 11:27:56.194 -07:00 [DBG] client configuration validation for client angular_spa succeeded.
2019-09-29 11:29:19.608 -07:00 [INF] Removing 0 grants
2019-09-29 11:29:19.641 -07:00 [DBG] Request path /connect/authorize/callback matched to endpoint type Authorize
2019-09-29 11:29:19.643 -07:00 [DBG] Endpoint enabled: Authorize, successfully created handler: IdentityServer4.Endpoints.AuthorizeCallbackEndpoint
2019-09-29 11:29:19.644 -07:00 [INF] Invoking IdentityServer endpoint: IdentityServer4.Endpoints.AuthorizeCallbackEndpoint for /connect/authorize/callback
2019-09-29 11:29:19.649 -07:00 [DBG] Start authorize callback request
2019-09-29 11:29:19.654 -07:00 [DBG] No user present in authorize request
2019-09-29 11:29:19.655 -07:00 [DBG] Start authorize request protocol validation
2019-09-29 11:29:19.657 -07:00 [DBG] client configuration validation for client angular_spa succeeded.
2019-09-29 11:29:19.658 -07:00 [DBG] Calling into custom validator: IdentityServer4.Validation.DefaultCustomAuthorizeRequestValidator
2019-09-29 11:29:19.659 -07:00 [INF] ValidatedAuthorizeRequest
{"ClientId":"angular_spa","ClientName":"Angular SPA","RedirectUri":"http://localhost:4200/auth-callback","AllowedRedirectUris":["http://localhost:4200/auth-callback"],"SubjectId":"anonymous","ResponseType":"id_token token","ResponseMode":"fragment","GrantType":"implicit","RequestedScopes":"openid profile email api.read","State":"1437dc56e6d44f7a83633019bddc2ba5","UiLocales":null,"Nonce":"0e0f9ccf5aca4280852d12b6bb6ec2a2","AuthenticationContextReferenceClasses":null,"DisplayMode":null,"PromptMode":null,"MaxAge":null,"LoginHint":null,"SessionId":null,"Raw":{"client_id":"angular_spa","redirect_uri":"http://localhost:4200/auth-callback","response_type":"id_token token","scope":"openid profile email api.read","state":"1437dc56e6d44f7a83633019bddc2ba5","nonce":"0e0f9ccf5aca4280852d12b6bb6ec2a2"},"$type":"AuthorizeRequestValidationLog"}
2019-09-29 11:29:19.661 -07:00 [INF] Showing login: User is not authenticated
2019-09-29 11:29:19.673 -07:00 [DBG] Start authorize request protocol validation
2019-09-29 11:29:19.675 -07:00 [DBG] client configuration validation for client angular_spa succeeded.
2019-09-29 11:29:19.676 -07:00 [DBG] Calling into custom validator: IdentityServer4.Validation.DefaultCustomAuthorizeRequestValidator
2019-09-29 11:29:19.677 -07:00 [DBG] client configuration validation for client angular_spa succeeded.