matrix-cactus-comments-client Service starts, but serve no files

[ralfi]

Describe the bug
Hi, i am using matrix-cactus-comments many months in conjunction with hugo to serve as static. Now i am try to use matrix-cactus-comments-client (mccc) for serving my static site because it's inside MDAD...

To Reproduce
My vars.yml file only related to mccc looks like this:

matrix_cactus_comments_client_container_image: "joseluisq/static-web-server:2-debina"
matrix_cactus_comments_client_container_http_host_bind_port: "8092"

Expected behavior
MDAD config/start skript works without errors, seems to me that the docker container listen to all internal addresses on port 8080

see here:

I expected that some serving files or errors if i use the URL/cactus-comments expression, but nothing happens.
I am playing a little bit with a additonal clear static-web-server config with docker-compose, see here:

and this config works as you can see here:

So have i set to other params in my vars.yml? I know, that have to add the Js Code for a complete working config but where can i put files to check the base config, f.i. with a simple index.html?