Hi, it seems MapQuest Open is down (not permitted to embed to anymore).
Unfortunately, they changed the architecture and now require to use a Leaflet plugin to access the tiles, which is not very simple to be integrated. I’ve disabled MapQuest for the moment and might integrate the Leaflet plugin in the future.
you dont have to require to use a Leaflet plugin to access the tiles, which is not very simple to be integrated. you should disabled MapQuest for the moment and check it again.