CDN does not work with a path in the url

[StiviiK]

Client/server version Build #1280, branch release

Expected behavior We are using Minio for the static file host, but there we can't put the files in the root of the domain. A full-blown URL path should be supported:

useCdn: true
cdnUrl: 'https://static.mydomain.coolio/static/resources/pack/'

But currently I receive Failed to connect to HTTP server.

Possible solution Support full-blown URLs including path for hosting resources.