127.0.0.1/api/v1 not able to reach on windows or linux, only [::1]/api/v1 or localhost/api/v1

[anizeani]

I realized, that the explorer-gui makes requests to 127.0.0.1/api/v1, but it gets a 404 http response.
I changed in the docker-compose the api address to [::1] instead of 127.0.0.1 and now the gui displays data (running the docker containers on WSL Ubuntu 16.04 LTS)