I'm trying to convert a simple shapefile drawn in GIS to GeoJSON. However, it's not working and I don't know why.
The file converts with QGIS (Save As), but the http://geojsonlint.com/ doesn't plot the shape, nor does my Mapbox application - it plots it as a line.
I've set the CRS to EPSG 3857.
Here's the GeoJSON, http://pastebin.com/93e0wWzA
Do you need the Shapefile to figure this out?