v0.3.1 with Saxon fully working

src/transform/serialization.ts

@@ -0,0 +1,11 @@
+import { prettyPrintXml } from '../validation/xmlValidation';
+
+export function serializeResultDocument(result: Document): string {
+  const serialized = new XMLSerializer().serializeToString(result);
+
+  try {
+    return prettyPrintXml(serialized);
+  } catch {
+    return serialized;
+  }
+}