Not working on oficial Gitlab

[vitorcampea]

Tried this on Demo link and on my local computer with docker build and run, same result

[vitorcampea]

This cors problem i think it got resolved by removing the last slash on my gitlab parameter

Add this
http://localhost/index.html?private_token={mytoken}&gitlab_url=https://gitlab.com/

Now:
http://localhost/index.html?private_token={mytoken}&gitlab_url=https://gitlab.com

But new error appeared: