diff --git a/client/vite.config.js b/client/vite.config.js
index 35f486b87..6cdcfe889 100644
--- a/client/vite.config.js
+++ b/client/vite.config.js
@@ -11,7 +11,7 @@ export default defineConfig({
         maximumFileSizeToCacheInBytes: 10 * 1024 * 1024,
         globPatterns: ['**/*.{js,css,html,svg,png,woff,woff2,ttf}'],
         navigateFallback: 'index.html',
-        navigateFallbackDenylist: [/^\/api/, /^\/uploads/, /^\/mcp/, /^\/oauth\//, /^\/.well-known\//],
+        navigateFallbackDenylist: [/^\/api/, /^\/uploads/, /^\/mcp/, /^\/oauth\//, /^\/.well-known\//, /^\/plugin-frame\//],
         runtimeCaching: [
           {
             // Carto map tiles (default provider)