If we enter a route with empty result, then we get a JS exception
leaflet-src.js:6449 Uncaught TypeError: Cannot read property '_layerAdd' of undefined
at NewClass.addLayer (leaflet-src.js:6449)
at Object.updateSpatialQueryMapShape (query.js:153)
at NewClass.spatialQueryOnClick (query.js:26)
at NewClass.fire (leaflet-src.js:588)
at NewClass._fireDOMEvent (leaflet-src.js:4272)
at NewClass._handleDOMEvent (leaflet-src.js:4229)
at HTMLDivElement.handler (leaflet-src.js:2231)
If we enter a route with empty result, then we get a JS exception