diff --git a/demos/hooks-target-blank-demo.html b/demos/hooks-target-blank-demo.html
index e565be61c..b87fd38a9 100644
--- a/demos/hooks-target-blank-demo.html
+++ b/demos/hooks-target-blank-demo.html
@@ -32,6 +32,8 @@
                 // set all elements owning target to target=_blank
                 if ('target' in node) {
                     node.setAttribute('target','_blank');
+                    // prevent https://www.owasp.org/index.php/Reverse_Tabnabbing
+                    node.setAttribute('rel', 'noopener noreferrer');
                 }
                 // set non-HTML/MathML links to xlink:show=new
                 if (!node.hasAttribute('target')