diff --git a/web/app.js b/web/app.js
index 8261040c0de87..720016c082343 100644
--- a/web/app.js
+++ b/web/app.js
@@ -817,7 +817,7 @@ const PDFViewerApplication = {
 
         return loadingErrorMessage.then(msg => {
           this.error(msg, { message });
-          throw new Error(msg);
+          throw exception;
         });
       }
     );