diff --git a/src/serviceworker/src/fetch_strategy.ts b/src/serviceworker/src/fetch_strategy.ts
index 5df4144..267372b 100644
--- a/src/serviceworker/src/fetch_strategy.ts
+++ b/src/serviceworker/src/fetch_strategy.ts
@@ -39,7 +39,7 @@ export class FetchStrategy {
 			FetchEvent,
 			'request' | 'preloadResponse'
 		>,
-		ac: AbortController = new AbortController(),
+		ac = new AbortController(),
 	) {
 		// Get cache or throw
 		const cachedOrError = cache.match(request)
@@ -103,7 +103,7 @@ export class FetchStrategy {
 			FetchEvent,
 			'request' | 'preloadResponse'
 		>,
-		ac: AbortController = new AbortController(),
+		ac = new AbortController(),
 	): Promise<Response> {
 		// Browser preload
 		const preload = getPreload(preloadResponse, ac)