Update index.js

index.js

@@ -348,10 +348,8 @@ fileUpload.addEventListener('change', async function(e) {
   const reader = new FileReader();
   
   reader.onload = async (e2) => {
-    reader.onload = function() {
-      updatePreview(e2.target.result);
-      // parse(e2.target.result)
-    }
+    updatePreview(e2.target.result);
+    // parse(e2.target.result)
   }
   reader.readAsDataURL(file);
 });