Getting Live Channels with extension installed

This is a follow-up to something I found the other day.

I was doing a live workshop on how to create a tetich extension.
I created a new extension
It was in local test so everything hosted on my PC.
I called the get live channels endpoint and got a 404.
As I was live at the time and had the extension installed I thought I would be included.

Asking if this is correct and expected behaviour?

I have been dealing with the same issue, would love to see it fixed!