Expected behaviour

For this Mapdata URL: https://code.highcharts.com/mapdata/countries/cn/cn-all.js

I should be getting response with key countries/cn/cn-all

Actual behaviour

but i am actually getting response with the key countries/cn/custom/cn-all

Highcharts.maps["countries/cn/custom/cn-all"] = {"title":"China","version":"2.3.0"...