exportKML question

CesiumJS
1

If I exportKml, the KML exported from this Cesium sandcastle doesn’t display in Google Earth. Any tips to what I’m doing wrong here? Thanks!

image
image1648×723 126 KB

image
image1294×529 84.9 KB

<kml
	xmlns="http://www.opengis.net/kml/2.2"
	xmlns:gx="http://www.google.com/kml/ext/2.2">
	<Document
		xmlns="">
		<Style id="style-1">
			<LineStyle>
				<width>1</width>
				<color>ff0000ff</color>
				<colorMode>normal</colorMode>
			</LineStyle>
			<PolyStyle>
				<color>80ffff00</color>
				<colorMode>normal</colorMode>
				<outline>1</outline>
			</PolyStyle>
		</Style>
		<Placemark id="fe4efe40-8939-446f-a1d4-f55becbaf2ba">
			<name>Cyan vertical polygon with per-position heights and outline</name>
			<visibility>1</visibility>
			<description></description>
			<styleUrl>#style-1</styleUrl>
			<Polygon>
				<outerBoundaryIs>
					<LinearRing>
						<coordinates>-90,40.99999999999999,0 -85,42.99999999999999,0 -80,41,0</coordinates>
					</LinearRing>
				</outerBoundaryIs>
				<altitudeMode>absolute</altitudeMode>
			</Polygon>
		</Placemark>
	</Document>
</kml>
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