diff --git a/src/dom/document-cloner.ts b/src/dom/document-cloner.ts
index 08faa29..1b86b7b 100644
--- a/src/dom/document-cloner.ts
+++ b/src/dom/document-cloner.ts
@@ -387,7 +387,7 @@ export class DocumentCloner {
 
         const value = style.content;
         const document = clone.ownerDocument;
-        if (!document || !value || value === 'none' || value === '-moz-alt-content' || style.display === 'none') {
+        if (!document || !value || value === 'normal' || value === 'none' || value === '-moz-alt-content' || style.display === 'none') {
             return;
         }