jitterをなくした

workspaces/client/src/serviceworker/index.ts

@@ -1,15 +1,8 @@
 /// <reference types="@types/serviceworker" />
-import PQueue from 'p-queue';
 
-import { jitter } from './jitter';
 import { transformJpegXLToBmp } from './transformJpegXLToBmp';
 import { zstdFetch as fetch } from './zstdFetch';
 
-// ServiceWorker が負荷で落ちないように並列リクエスト数を制限する
-const queue = new PQueue({
-  concurrency: 5,
-});
-
 self.addEventListener('install', (ev: ExtendableEvent) => {
   ev.waitUntil(self.skipWaiting());
 });
@@ -19,17 +12,10 @@ self.addEventListener('activate', (ev: ExtendableEvent) => {
 });
 
 self.addEventListener('fetch', (ev: FetchEvent) => {
-  ev.respondWith(
-    queue.add(() => onFetch(ev.request), {
-      throwOnTimeout: true,
-    }),
-  );
+  ev.respondWith(onFetch(ev.request));
 });
 
 async function onFetch(request: Request): Promise<Response> {
-  // サーバーの負荷を分散するために Jitter 処理をいれる
-  await jitter();
-
   const res = await fetch(request);
 
   if (res.headers.get('Content-Type') === 'image/jxl') {