diff --git a/lib/core/utils/dq-element.js b/lib/core/utils/dq-element.js
index acb9fae0..b66e48f2 100644
--- a/lib/core/utils/dq-element.js
+++ b/lib/core/utils/dq-element.js
@@ -281,12 +281,17 @@ function getSourceOpt(element) {
 }
 
 function getSource(element) {
-  if (!element) {
+  if (!element?.outerHTML) {
     return '';
   }
-
-  // a11y-engine changes - use truncateElement which handles regex replacement
-  return truncateElement(element);
+  let source = element.outerHTML;
+  if (!source && typeof window.XMLSerializer === 'function') {
+    source = new window.XMLSerializer().serializeToString(element);
+  }
+  // a11y-engine changes - use truncate which handles regex replacement
+  const regex = /\s*data-percy-[^=]+="[^"]*"/g; // Remove unwanted attributes
+  source = (source || '').replace(regex, '');
+  return truncate(source);
 }
 
 /**