diff --git a/site/src/layouts/Base.astro b/site/src/layouts/Base.astro
index bf1d2de..ab46728 100644
--- a/site/src/layouts/Base.astro
+++ b/site/src/layouts/Base.astro
@@ -101,6 +101,7 @@ try {
   {instancePrivate && !isPublicPage && (
     <style is:inline>[data-auth-pending]{visibility:hidden}</style>
     <script is:inline define:vars={{ authUrl }}>
+      window.__bincioAuthUrl = authUrl;
       fetch('/api/me', { credentials: 'include' })
         .then(r => {
           if (r.status === 401 || r.status === 404) {
@@ -590,7 +591,8 @@ try {
 
   <!-- User widget: only needed for multi-user (single-user nav links are static) -->
   {!singleHandle && (
-    <script define:vars={{ baseUrl, authUrl }}>
+    <script define:vars={{ baseUrl }}>
+      const authUrl: string = (window as any).__bincioAuthUrl ?? '';
       (async () => {
         try {
           const r = await fetch('/api/me', { credentials: 'include' });
@@ -732,6 +734,7 @@ try {
 
   {editEnabled && (
     <script define:vars={{ editUrl, baseUrl }}>
+      const authUrl: string = (window as any).__bincioAuthUrl ?? '';
       const modal         = document.getElementById('upload-modal');
       const openBtn       = document.getElementById('upload-btn');
       const closeBtn      = document.getElementById('upload-close');