[keycloak-dev] How to use an offline token to get access token

Hello, I have a javascript application with keycloak javascript adapter, I use direct grant to get the initial offline token and save to database and it works great, the problem is when I want to get an access token the adapter fails silently. Here is how I initiate the adapter     keycloak.init({             refreshToken: response.refresh_token,             checkLoginIframe: false           })           .success(authenticated => {             if(!authenticated)               dispatch(loginFailure())             else {         ....       } then I tried to get the token directly from google chrome "postman" tool: POST http://localhost:8080/realms/sisdn-realm/protocol/openid-connect/token headers: Content-Type: application/x-www-form-urlencoded body: grant_type=refresh_token refresh_token=eyJhbGciOi... client_id=sisdn but the server responds with not-found, what am I doing wrong?