Apollo client doesn't display an error message
问题 I have configured and set up a fully functional express-nextjs-graphql-apollo app that can login/logout a user, and perfectly do CRUD. The last and very important step is to display error messages on client-side. So far, I'm only getting this red error in a console: POST http://localhost:3000/graphql 500 (Internal Server Error) For example, a login form validation. When no input is provided, it's supposed to get an invalid input error message, or E-Mail is invalid if email format is incorrect