Identityserver4: Sorry, there was an error : unauthorized_client

Created on 25 Jan 2019 · 5Comments · Source: IdentityServer/IdentityServer4

Hi,
I have implemented an angular 7 client which consumes the Identity Server 4. When running the client in localhost, its working fine. But when I deploy it in Dev environment, its giving me a "unauthorized_client" error.

Here is the client configuration in Identity Server 4:

new Client
{
ClientId = "client_angular",
ClientName = "UserApp",
AllowedGrantTypes = IdentityServer4.Models.GrantTypes.Implicit,

            AllowedScopes =
            {
                IdentityServerConstants.StandardScopes.OpenId,
                IdentityServerConstants.StandardScopes.Profile,
                IdentityServerConstants.StandardScopes.Email,
                "helpdesk_service_api.read",
                "helpdesk_service_api.write"
            },

            RedirectUris = {"http://client-url/auth-callback"}, 
            PostLogoutRedirectUris = {"http://client-url"}, 
            AllowedCorsOrigins = {"http://client-url"}, 

            AllowAccessTokensViaBrowser = true,
            AccessTokenLifetime= 3600,
             RequireClientSecret = false,

        }

And on the angular client side, this is how its configured:

export function getClientSettings(): UserManagerSettings {
return {
authority: 'http://identity-server-url',
client_id: 'client_angular',
redirect_uri: 'http://client-url/auth-callback',
post_logout_redirect_uri: 'http://client-url',
response_type:"id_token token",
scope:"openid profile email helpdesk_service_api.read helpdesk_service_api.write",
filterProtocolClaims: true,
loadUserInfo: true,
automaticSilentRenew: true,
silent_redirect_uri: 'http://client-url/silent-refresh.html',
};
}