As of yesterday a subscription is needed to use the MapQuest source. I used to use MapQuest from Openlayers3 but after registering on MapQuest and creating the App, there is no indication on how to use the App Key and App Secret in Openlayers. Also in Openlayers' online API reference the ol.source.MapQuest is disappeared (!).
Does anybody know what's going on or how to use such Keys in Openlayers?
Thanks.