diff --git a/src/service-worker/index.js b/src/service-worker/index.js
new file mode 100644
index 0000000..b7e92f8
--- /dev/null
+++ b/src/service-worker/index.js
@@ -0,0 +1,6 @@
+///
+///
+///
+///
+
+const sw = /** @type {ServiceWorkerGlobalScope} */ (/** @type {unknown} */ (self));