Lazily create resources for worker
Lazily create resources for worker

stweil/openlayers,oterral/ol3,bjornharrtell/ol3,stweil/openlayers,ahocevar/openlayers,stweil/openlayers,openlayers/openlayers,bjornharrtell/ol3,ahocevar/openlayers,oterral/ol3,openlayers/openlayers,oterral/ol3,openlayers/openlayers,ahocevar/openlayers,bjornharrtell/ol3