diff --git a/Frontend/patient_manager/web/index.html b/Frontend/patient_manager/web/index.html
index f469b31e..b62c9e8e 100644
--- a/Frontend/patient_manager/web/index.html
+++ b/Frontend/patient_manager/web/index.html
@@ -122,8 +122,8 @@
   <script src="flutter_bootstrap.js" defer></script>
 
   <!-- File Picker & PDF viewer -->
-  <script src="//cdnjs.cloudflare.com/ajax/libs/pdf.js/2.11.338/pdf.min.js" defer></script>
-  <script type="text/javascript" defer>
+  <script src="//cdnjs.cloudflare.com/ajax/libs/pdf.js/2.11.338/pdf.min.js"></script>
+  <script type="text/javascript">
     pdfjsLib.GlobalWorkerOptions.workerSrc = "//cdnjs.cloudflare.com/ajax/libs/pdf.js/2.11.338/pdf.worker.min.js";
   </script>