Server did bubu:
Cannot read property 'lon' of null

    TypeError: Cannot read property 'lon' of null
    at checkPreview (C:\al\sites\sharemarker.info\controllers\mapController.js:74:27)
    at Group.<anonymous> (C:\al\sites\sharemarker.info\controllers\mapController.js:109:17)
    at Group.fcall (C:\al\sites\sharemarker.info\node_modules\flowy\index.js:82:12)
    at Group.fapply (C:\al\sites\sharemarker.info\node_modules\flowy\index.js:91:34)
    at Group.<anonymous> (C:\al\sites\sharemarker.info\node_modules\flowy\index.js:100:21)
    at C:\al\sites\sharemarker.info\node_modules\flowy\index.js:284:18
    at _combinedTickCallback (internal/process/next_tick.js:131:7)
    at process._tickCallback (internal/process/next_tick.js:180:9)