diff --git a/apps/web/src/routes/offline/+page.ts b/apps/web/src/routes/offline/+page.ts
new file mode 100644
index 0000000..84ed4eb
--- /dev/null
+++ b/apps/web/src/routes/offline/+page.ts
@@ -0,0 +1,5 @@
+// Prerender, damit /offline im Workbox-Precache landet (matched
+// `prerendered/**/*.html`-Glob aus @mana/shared-pwa).
+// Ohne wirft der SW `non-precached-url`-Error auf
+// `createHandlerBoundToURL("/offline")` und der navigateFallback ist tot.
+export const prerender = true;