- graphhopper_url: "//graphhopper.com/api/1/route"
- mapquest_directions_url: "//open.mapquestapi.com/directions/v2/route"
- mapzen_valhalla_url: "//valhalla.mapzen.com/route"
- osrm_url: "//router.project-osrm.org/route/v1/driving/"
+ graphhopper_url: "https://graphhopper.com/api/1/route"
+ fossgis_osrm_url: "https://routing.openstreetmap.de/"