diff --git a/static/demos/light-dark-superior_v1/sw.js b/static/demos/light-dark-superior_v1/sw.js
index bda8a04..ebbfad3 100644
--- a/static/demos/light-dark-superior_v1/sw.js
+++ b/static/demos/light-dark-superior_v1/sw.js
@@ -8,7 +8,8 @@ async function fetchResponse(event) {
     const { request } = event;
     const resp = await fetch(request);
     const body = await resp.text();
-    const cookies = resp.headers.getSetCookie();
+    console.log(request.headers);
+    const cookies = request.headers.getSetCookie();
     console.log(cookies);
     let theme_toggled = false;
     for (let cookie of cookies) {