diff --git a/packages/mermaid/src/diagrams/common/common.ts b/packages/mermaid/src/diagrams/common/common.ts
index 00c9b8313..4b73bb02f 100644
--- a/packages/mermaid/src/diagrams/common/common.ts
+++ b/packages/mermaid/src/diagrams/common/common.ts
@@ -33,13 +33,13 @@ function setupDompurifyHooks() {
   const TEMPORARY_ATTRIBUTE = 'data-temp-href-target';
 
   DOMPurify.addHook('beforeSanitizeAttributes', (node) => {
-    if (node instanceof Element && node.tagName === 'A' && node.hasAttribute('target')) {
+    if (node.tagName === 'A' && node.hasAttribute('target')) {
       node.setAttribute(TEMPORARY_ATTRIBUTE, node.getAttribute('target') ?? '');
     }
   });
 
   DOMPurify.addHook('afterSanitizeAttributes', (node) => {
-    if (node instanceof Element && node.tagName === 'A' && node.hasAttribute(TEMPORARY_ATTRIBUTE)) {
+    if (node.tagName === 'A' && node.hasAttribute(TEMPORARY_ATTRIBUTE)) {
       node.setAttribute('target', node.getAttribute(TEMPORARY_ATTRIBUTE) ?? '');
       node.removeAttribute(TEMPORARY_ATTRIBUTE);
       if (node.getAttribute('target') === '_blank') {