- Add a map to a page, e.g.
<mapframe latitude="46.725" longitude="7.668" zoom="8" width="350" height="300" />
- In VE open the map for editing. Use options "Draw a polygon" and "Draw a rectangle" to add elements to a map.
- When a polygon or a rectangle are added, "Edit layers" option becomes active. Click on it - the error will be displayed:
Uncaught TypeError: Cannot read property 'lat' of null at Object.project at Object.latLngToPoint at NewClass.project at NewClass._getMiddleLatLng at NewClass._createMiddleMarker at NewClass._initMarkers at NewClass.addHooks at NewClass._eachVertexHandler at NewClass.addHooks