Hello everybody

I am new to sap ui5 . According to the exercises in open sap they are using attributes of the tag script like id and data-sap-ui-lib.But according to w3schools the tag script tag contains only these attributes .

async charset defer src type .

How is this is possible , are this propriety to SAP ?? and if yes how do i find their functionality .

ad>
		<meta http-equiv="X-UA-Compatible" content="IE=edge"/>
		<meta charset="UTF-8">
		<title>OpenSAP - Developing Web Apps with SAPUI5</title>
		
		<script
		id = "sap.ui.bootstrap"
		src= "https://sapui5.hana.ondemand.com/resources/sap-ui-core.js"
		data-sap-ui-theme="sap_bluecrystal"
		data-sap-ui-libs="sap.m"
		data-sap-ui-compatVersion="edge"
		data-sap-ui-preload = "async">
		</script>
		<script>
			sap.ui.getCore().attachInit(function () {
			alert("SAPUI% is ready for Bodhisattwa Pal");
			});