diff --git a/public/index.html b/public/index.html
index 2a8b4d3..6924273 100644
--- a/public/index.html
+++ b/public/index.html
@@ -26,6 +26,7 @@
 
     <script
       nomodule
+      crossorigin
       src="https://polyfill.io/v3/polyfill.min.js?features=Set%2CMap%2CObject.assign%2Cfetch%2CrequestAnimationFrame%2CNodeList.prototype.forEach%2CElement.prototype.classList%2Cperformance.now%2CNode.prototype.contains%2CElement.prototype.dataset"
     ></script>
     <script src="scripts/AppCollapsible.js"></script>