(WARN: Probably duplicated, didn't really get to find out because Phabricator's flow is not really friendly.)
Right now a given user can spot a map in an article (let's say https://es.wikipedia.org/wiki/Fuente_D%C3%A9). Once the user clicks on it the SVG is displayed with no label on it, making it unusable and not offering the expected behaviour.
Steps to Reproduce
Click on a map inside an article.
No label is displayed over an empty map.
The same labels that appear on the thumbnail.