src/ajax/parseXML.js


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define([
	"../core"
], function( jQuery ) {
	// Cross-browser xml parsing
	jQuery.parseXML = function( data ) {
		var xml, tmp;
		if ( !data || typeof data !== "string" ) {
			return null;
		}

		// Support: IE9
		try {
			tmp = new DOMParser();
			xml = tmp.parseFromString( data , "text/xml" );
		} catch ( e ) {
			xml = undefined;
		}

		if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {
			jQuery.error( "Invalid XML: " + data );
		}
		return xml;
	};

	return jQuery.parseXML;
});