Keycloak CORS issue when being redirected to login

Question

I am trying to get the nodeJS keycloak adapter working with my Express application, but am facing a CORS issue when it tries to redirect to the login page for routes I have

Answer 1

I had the exact same problem. I am using Keycloak 6.0.1

In my case, I had to add "enable-cors": true in keycloak.json in my Java backend server.

Afterward, I had another issue: 401 UNAUTHORIZED. This post solved the problem