Can't load web interface elements

[ndik11]

In my K8s cluster I don't have internet connection for security reasons.
So I have a problem, I dont see web elements of gangway because they are on Cloudflare.
And also button Download Kubeconfig goes nowhere. (ERR_INVALID_RESPONCE). But I can login with command line.
I don't know if these problems connected with each other.
But it will be great if you could provide image with downloaded elements.