The popup of an airport showed:
runways: [Object object] [Object object] ....
This fix will instead print the runway's ID, ie:
runways: 08L, 26R, 08R, 26L
Same issue solved with communication frequencies.
Use geodesic plugin for leaflet do correctly display great circle
paths between waypoints and handle wrapping across -180deg of latitude.
The entire leaflet library seems to have an issue wrapping around
-180/+180 deg of latitude :-/