Activate uri access for asciidoc documents. Important for includes via URIs

curl --request PUT --header "PRIVATE-TOKEN: <your_access_token>" "https://gitlab.example.com/api/v4/application/settings?wiki_asciidoc_allow_uri_includes=true"

If this does’nt works login to the gitlab container and start the rails console:

docker exec -it gitlab /bin/bash
gitlab-rails console

Update the wiki to allow URI includes for AsciiDoc

ApplicationSetting.first.update!(wiki_asciidoc_allow_uri_includes: true)