Still broken.

Maybe it is easier to explain with mediawiki.org

If you do next:

1. Open map in mediawiki.org
2. If you look the wikicode in maptest page you see that the content of the popup comes from Template:Kartographer_WLM_pin
3. There is no Template:Kartographer_WLM_pin in mediawiki.org
4. However when you open the map and click buildings popup will magically work
5. It is because template is rendered using enwiki and template used is https://en.wikipedia.org/wiki/Template:Kartographer_WLM_pin

Also, the example doesn't work currently because template was deleted in enwiki.

Confirm that this is still a problem. Kartotherian seems to do all its parsing against en.wikipedia.org, instead of the domain it should be using...

    // TODO: we shouldn't use it directly,
    // but instead refactor out mwapi lib from node_service_template
    // and use the proper host
const mwapi = core.getConfiguration().mwapi_req;
config.mwapi = (mwapi && mwapi.uri) || 'https://en.wikipedia.org/w/api.php';

https://github.com/wikimedia/mediawiki-services-kartotherian/blob/4592692ddc14dc2fb3f20f5756fa2cf92dc6023a/packages/geoshapes/index.js#L43