Не отображается Google maps в IE11. Как исправить?

<script async="async" defer="defer" src="https://maps.googleapis.com/maps/api/js?key=AIzaSyDIJCYRiPRSgn9m3f0Tkd3bLONW3COB_7I&amp;callback=initMap&amp;libraries=geometry"></script>
			<script>
				var map, map2;
				var centerMap = {
					lat: <?php echo get_field( 'доставка' )['lat'] ?>,
					lng: <?php echo get_field( 'доставка' )['lng'] ?>
				};
				var centerMap2 = {
					lat: <?php echo get_field( 'самовывоз' )['lat'] ?>,
					lng: <?php echo get_field( 'самовывоз' )['lng'] ?>
				};
				
				function circlePath(center, radius, points,reverse=false){
					var a=[],p=360/points,d=0;
					for(var i=0;i<points;++i,d+=p){
						a.push(google.maps.geometry.spherical.computeOffset(center,radius,d));
					}
					return a;
				}

				function initMap() {
				var styles = [
					{
						"featureType": "administrative",
						"elementType": "all",
						"stylers": [
							{
								"visibility": "simplified"
							}
						]
					},
					{
						"featureType": "landscape",
						"elementType": "geometry",
						"stylers": [
							{
								"visibility": "simplified"
							},
							{
								"color": "#fcfcfc"
							}
						]
					},
					{
						"featureType": "poi",
						"elementType": "geometry",
						"stylers": [
							{
								"visibility": "simplified"
							},
							{
								"color": "#fcfcfc"
							}
						]
					},
					{
						"featureType": "road.highway",
						"elementType": "geometry",
						"stylers": [
							{
								"visibility": "simplified"
							},
							{
								"color": "#dddddd"
							}
						]
					},
					{
						"featureType": "road.arterial",
						"elementType": "geometry",
						"stylers": [
							{
								"visibility": "simplified"
							},
							{
								"color": "#dddddd"
							}
						]
					},
					{
						"featureType": "road.local",
						"elementType": "geometry",
						"stylers": [
							{
								"visibility": "simplified"
							},
							{
								"color": "#eeeeee"
							}
						]
					},
					{
						"featureType": "water",
						"elementType": "geometry",
						"stylers": [
							{
								"visibility": "simplified"
							},
							{
								"color": "#dddddd"
							}
						]
					}
				];
				

				// var styledMap = new google.maps.StyledMapType(styles, {name: "Styled Map"});
				
				map = new google.maps.Map(document.getElementById('map'), {
					zoom: 8,
					center: centerMap,
				});
				var infowindow = new google.maps.InfoWindow({
					content: "<?php echo get_field( 'доставка' )['address'] ?>"
				});
				var marker = new google.maps.Marker({
					position: centerMap,
					map: map
				});
				marker.addListener('click', function() {
					infowindow.open(map, marker);
				});
				// map.mapTypes.set('map', styledMap);
				// map.setMapTypeId('map');

				circle1 = circlePath(new google.maps.LatLng(centerMap),20000,360);
				circle2 = circlePath(new google.maps.LatLng(centerMap),40000,360);
				circle3 = circlePath(new google.maps.LatLng(centerMap),60000,360);
				circle4 = circlePath(new google.maps.LatLng(centerMap),80000,360);
				
				polygon_c1 = new google.maps.Polygon({
					map:map,
					fillColor: '#FF0000',
					fillOpacity: 0.20,
					strokeWeight: 1,
					strokeOpacity: 0.20,
					paths: [circle1],
				});

				polygon_c2 = new google.maps.Polygon({
					map:map,
					fillColor: '#FFFF00',
					fillOpacity: 0.20,
					strokeWeight: 1,
					strokeOpacity: 0.20,
					paths: [circle2, circle1.reverse()],
				});

				polygon_c3 = new google.maps.Polygon({
					map:map,
					fillColor: '#00FF00',
					fillOpacity: 0.20,
					strokeWeight: 1,
					strokeOpacity: 0.20,
					paths: [circle3, circle2.reverse()],
				});

				polygon_c4 = new google.maps.Polygon({
					map:map,
					fillColor: '#00FFFF',
					fillOpacity: 0.20,
					strokeWeight: 1,
					strokeOpacity: 0.20,
					paths: [circle4, circle3.reverse()],
				});

				map2 = new google.maps.Map(document.getElementById('map2'), {
					zoom: 14,
					center: centerMap2,
				});
				var infowindow2 = new google.maps.InfoWindow({
					content: "<?php echo get_field( 'самовывоз' )['address'] ?>"
				});
				var marker2 = new google.maps.Marker({
					position: centerMap2,
					map: map2
				});
				marker2.addListener('click', function() {
					infowindow2.open(map2, marker2);
				});
				// map2.mapTypes.set('map2', styledMap);
				// map2.setMapTypeId('map2');
				}
			</script>