On Monday, October 9, 2017 at 5:24:07 PM UTC-4, wrote:
Try http://www.soaringlab.eu
Still testing, so let us know what you think...

Thank you, thank you! I agree with 7Q; Soaringlab provides great tracking. 2D works good over Google Maps and I'm looking forward to loading Cesium 3D maps (https://www.cesiumjs.org/) and using Soaringlab over 3D. Please keep up the testing and development.