This just started happening, I'm seeing errors when trying to load leaflet plugins on our map page, and it's preventing the map from loading.
Chrome is giving me:
GET https://www.mapquestapi.com/sdk/leaflet/v2.2/mq-map.js?key= net::ERR_ABORTED 404 (Not Found)
Is the service down? Is there a status page somewhere I can check?