Update main.html

public/main.html

@@ -23,8 +23,8 @@
 	<script src="https://cdn.jsdelivr.net/npm/chart.js@2.8.0"></script>
 	<!-- import Cesium.js -->
 	<!-- <script src="Build/Cesium/Cesium.js"></script> -->
-	<script src="https://cesiumjs.org/releases/1.78/Build/Cesium/Cesium.js"></script>
-  	<link href="https://cesiumjs.org/releases/1.78/Build/Cesium/Widgets/widgets.css" rel="stylesheet">
+    <script src="https://cesium.com/downloads/cesiumjs/releases/1.85/Build/Cesium/Cesium.js"></script>
+    <link href="https://cesium.com/downloads/cesiumjs/releases/1.85/Build/Cesium/Widgets/widgets.css" rel="stylesheet">
 	<style>
 		@import url(css/myChart.css);
 
@@ -35,7 +35,7 @@
 		}
 	</style>
 	<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
-	<script src="https://unpkg.com/sweetalert/dist/sweetalert.min.js"></script>
+	<script src="https://cdnjs.cloudflare.com/ajax/libs/sweetalert/2.1.2/sweetalert.min.js" integrity="sha512-AA1Bzp5Q0K1KanKKmvN/4d3IRKVlv9PYgwFPvm32nPO6QS8yH1HO7LbgB1pgiOxPtfeg5zEn2ba64MUcqJx6CA==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
 	<script type="text/javascript">
 		var arrLang = {
 			'en': {