How to upload an external kml file with a route to Yandex.maps?

Question

Yandex maps

Hello.
I have the following problem, I need to display data about the route generated in the kml file, on Yandex.carat. I do the example https://tech.yandex.ru/maps/jsbox/2.1/geoxml_display , I replace the address from where it is connected to my own, but the track is not displayed on the map .. where to look, what to add? The kml file is available from the outside. What other assumptions will be?

Answer 1

The file must be accessible from the outside, as it is picked up by a Yandex robot.

Answer 2

file is available outside...