Empty response NodeJs & vue

Hey all

I have auth0 setup via node, running locally on port 3000. When I access localhost:3000/api/auth I can see the logged-in user, but when I send a request via axios from vuejs app (localhost:5173) to the nodejs BE, the response of the endpoint is empty. I think its sth with cors, I have added both localhost with their ports and allowed cors-cross in app settings, but still getting empty responses.

For the login method, I redirect the user to nodejs, then it redirects user to auth0, & callback is also to the nodejs, all works well in nodejs, but the requests from vue has always are empty response.