Facing CORS error when fetching (from Front END) APIs (endpoints using requiresAuth()) in Express Server

[ranjan.pratik21]

I am getting CORS Error, when I am tryong to call an endpoint fromm my ExpressJS Server… which is using requiresAuth() for auth0 authentication.
The error console is as follows:
“”“”““Access to fetch at ‘https://…’ (redirected from ‘http://localhost:3000/twitterbookmarker/showUserBookmark’) from origin ‘http://localhost:5500’ has been blocked by CORS policy: No ‘Access-Control-Allow-Origin’ header is present on the requested resource. If an opaque response serves your needs, set the request’s mode to ‘no-cors’ to fetch the resource with CORS disabled.””“”“”

My Express Server is running at : http://localhost:3000
My Front End Code is running at: http://localhost:5500

I went through a community question with a similar issue, but the issue is unresolved:

No 'Access-Control-Allow-Origin' header issue

This is still an issue for me. I’m using my Nodejs API which has a route which redirects me to the login page. This is what happens localhost:3000/auth/login2 → localhost:5000/auth/login2 → calls the Auth0 Passport Strategy But I don’t get redirected to login in the react front-end as this is the error I get.

Also, http://localhost:5500 has been added to both “Allowed Web Origins” and “Allowed Origins (CORS)” in the application settings.

Please try and resolve this issue or guide me if it’s a mistake from my side ASAP, since it is a blocker.

[badbread]

@ranjan.pratik21 have you found the way to resolve the issue? I am facing the same one