diff --git a/server.js b/server.js
index abbf431..2593535 100644
--- a/server.js
+++ b/server.js
@@ -177,7 +177,10 @@ function sendFile(res, file) {
     if (err) { res.writeHead(404, baseHeaders({ 'Content-Type': 'text/plain' })); return res.end('Not found'); }
     const ext = path.extname(file).toLowerCase();
     res.writeHead(200, baseHeaders({ 'Content-Type': MIME[ext] || 'application/octet-stream',
-      'Cache-Control': ext === '.html' ? 'no-cache' : 'public, max-age=3600' }));
+      // HTML is never stored (so a fresh load always gets the current asset
+      // versions — aggressive in-app wallet browsers were serving stale pages
+      // that pointed at old, since-fixed JS); versioned assets cache for an hour.
+      'Cache-Control': ext === '.html' ? 'no-store, must-revalidate' : 'public, max-age=3600' }));
     res.end(data);
   });
 }