diff --git a/assets/public/index.html b/assets/public/index.html
index 02ca2d7d..b7b6407c 100644
--- a/assets/public/index.html
+++ b/assets/public/index.html
@@ -31,6 +31,8 @@
     <script>
       (function() {
         window.GLOBAL_ENV = {};
+        window.__OVERLAY__ = /overlay/.test(location.pathname)
+        window.__BILLING_STANDALONE__ = /^\/billing/.test(location.pathname)
 
         window.IS_IOS = /iPad|iPhone|iPod/.test(navigator.userAgent);
         window.IS_MOBILE = window.matchMedia("(pointer: coarse)").matches;