anchor.diff:  'https://point-forecast.weather.mg/aggregate?locatedWithin={%22type%22:%22Polygon%22,%22coordinates%22:[[[12,5],[14,531],[13,52.9],[12,5]]]}&validPeriod=PT0S&fields=maxThunderstormProbabilityInPercent&validFrom=2017-08-05T00:00:00Z&validUntil=2017-08-05T03:00:00Z'
   
   + Parameters
  -    + locatedWithin: `{"type":"Polygon","coordinates":[[[12,5],[14,531],[13,52.9],[12,5]]]}` (string, required) - JSON polygon geometry object, as defined in GeoJSON
  +    + locatedWithin: `{"type" : "Polygon","coordinates" : [[[12,5],[14,531],[13,52.9],[12,5]]]}` (string, required) - JSON polygon geometry object, as defined in GeoJSON
       + validFrom: `2017-08-05T00:00:00Z` (string, required) - ISO8601 timestamp notation, means incl. this timestamp; always provide a time offset, e.g. 'Z' for UTC; optional: a request may provide correct offset (so that server can convert to UTC).
       + validUntil: `2017-08-05T03:00:00Z` (string, required) - ISO8601 timestamp notation, means incl. this timestamp; always provide a time offset, e.g. 'Z' for UTC; optional: a request may provide correct offset (so that server can convert to UTC).
       + validPeriod: `PT0S` (string, required) - comma separated list of periods to be retrieved.
  
positive.code: 
      + Body
  	{
          "forecasts": [
              {
                  "locatedWithin": {
                      "coordinates": [
                          [
                              [
                                  12,
  
negative.code:                             ]
                          ]
                      ],
                      "type" :  "Polygon"
                  },
                  "validUntil" :  "2017-08-05T03:00:00Z",
                  "maxThunderstormProbabilityInPercent" :  10,
                  "validFrom" :  "2017-08-05T03:00:00Z",
                  "validPeriod" :  "PT0S"
              }
          ]
      }
  