Ionic 3 - Straight polyline using google maps native 4.8.2

Hello ,
I have just added google maps native 4.8.2 to my ionic 3 project but when i draw a polyline it works fine, but the lines are drawn straight although I´ve activated geodesic

.

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Thank you for your reply :
Here’s my code :

this.map = GoogleMaps.create('map_canvas', {
  camera: {
    target: {
      lat: 	51.752273,
      lng: -1.257758
    },
    zoom: 18,
    tilt: 30
  }
});

let marker: Marker = this.map.addMarkerSync({
      title: 'Warehouse',
      icon: 'red',
      animation: 'DROP',
      position: {
        lat: 51.752273,
        lng: -1.257758
      }
    });

    marker.on(GoogleMapsEvent.MARKER_CLICK).subscribe(() => {
      alert('Warehouse');
    });



let points = [
            {
              lat:51.752273 ,
              lng: -1.257758
            },
            {
              lat: 51.76166,
              lng: -1.26804
            }
          ];

for(var i = 1; i < points.length; i++) {


  var job = points[i];

let marker: Marker = this.map.addMarkerSync({
      title: 'Stop '+ labels[i % labels.length],
      icon: 'red',
      animation: 'DROP',
      position: {
        lat: job.lat,
        lng: job.lng
      }
    });
    marker.on(GoogleMapsEvent.MARKER_CLICK).subscribe(() => {
      alert('clicked');
    });

}

      this.map.addPolyline({
        points: points,
        'color' : '#00008B',
        'width': 3,
        'geodesic': true,

    });

and i’m getting this :