tmp

dist/index.html

@@ -7,9 +7,11 @@
     const htmlElement = document.documentElement;
     const newHtmlElement = htmlElement.cloneNode(true);
     htmlElement.parentNode.replaceChild(newHtmlElement, htmlElement);
-    // Force a reflow
-    void document.body.offsetWidth;
-    console.log('DOCTYPE is present');
+    // Wait for DOM to be ready before forcing reflow
+    document.addEventListener('DOMContentLoaded', () => {
+      void document.body.offsetWidth;
+      console.log('DOCTYPE is present');
+    });
   }
   else {
     console.log('DOCTYPE is present');