Fix handling of null ORWORB FASTUSER meta field

htdocs/vistax.mjs

@@ -157,6 +157,7 @@ export const d_parse_orderoptions_meddose = data => {
 };
 
 export const d_parse_notifications_fastuser = data => d_split(data, '^', 'info', 'patient', 'location', 'urgency', 'time', 'message', 'unk_6', 'meta', 'unk_7', 'unk_8').map(row => {
+	if(row.meta) {
 		var meta = row.meta.split(';');
 		var xqaid = row.meta_xqaid = meta[0];
 		row.meta_duz = meta[1];
@@ -170,6 +171,7 @@ export const d_parse_notifications_fastuser = data => d_split(data, '^', 'info',
 			row.meta_source = 'TIU';
 			row.meta_ien = xqaid.substring(3);	// document IEN (DA)
 		}
+	}
 	return row;
 });