diff --git a/web/app.js b/web/app.js
index 45cd34cecd991..669a3c6e3bf46 100644
--- a/web/app.js
+++ b/web/app.js
@@ -823,7 +823,7 @@ const PDFViewerApplication = {
 
         return loadingErrorMessage.then(msg => {
           this.error(msg, { message });
-          throw new Error(msg);
+          throw exception;
         });
       }
     );