diff --git a/web/app_options.js b/web/app_options.js
index 2b67f4e0a..f88932034 100644
--- a/web/app_options.js
+++ b/web/app_options.js
@@ -67,7 +67,9 @@ const defaultOptions = {
   },
   enableScripting: {
     /** @type {boolean} */
-    value: typeof PDFJSDev !== "undefined" && PDFJSDev.test("TESTING"),
+    value:
+      typeof PDFJSDev === "undefined" ||
+      PDFJSDev.test("!PRODUCTION || TESTING"),
     kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
   },
   enableWebGL: {