When downloading .geojson, I found that new lines could cause it to not be saved in iTunes Connect, but still be checked on geojsonlint.
For instance:
FAILS:
{ "type": "MultiPolygon", "coordinates": [ [[[14.094369,36.060248], [14.138314, 35.869068], [14.428181,35.746154], [14.744622,35.782218], [14.648492,36.028047], [14.181083, 36.192884], [14.094369,36.060248] ]]] }
succeeds:
{ "type": "MultiPolygon", "coordinates": [ [[[14.094369,36.060248], [14.138314, 35.869068], [14.428181,35.746154], [14.744622,35.782218], [14.648492,36.028047], [14.181083, 36.192884], [14.094369,36.060248]]] ] }
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