From e913cf86b79e0e21b10aca81243f79cb7c240a7e Mon Sep 17 00:00:00 2001
From: cyfung1031 <44498510+cyfung1031@users.noreply.github.com>
Date: Sat, 11 Apr 2026 10:12:53 +0900
Subject: [PATCH 1/9] =?UTF-8?q?=E5=AE=9E=E7=8E=B0=20WakeUpPing?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/offscreen.ts             |  2 ++
 src/pkg/utils/wakeup-ping.ts | 65 ++++++++++++++++++++++++++++++++++++
 src/service_worker.ts        |  6 ++++
 3 files changed, 73 insertions(+)
 create mode 100644 src/pkg/utils/wakeup-ping.ts

diff --git a/src/offscreen.ts b/src/offscreen.ts
index 9cc1cb42c..f8c51f8a3 100644
--- a/src/offscreen.ts
+++ b/src/offscreen.ts
@@ -2,6 +2,7 @@ import LoggerCore from "./app/logger/core";
 import MessageWriter from "./app/logger/message_writer";
 import { OffscreenManager } from "./app/service/offscreen";
 import { ServiceWorkerClientMessage } from "@Packages/message/window_message";
+import { startRepetitivePing } from "./pkg/utils/wakeup-ping";
 
 function main() {
   // 通过postMessage与SW通信,支持结构化克隆(Blob等)
@@ -15,6 +16,7 @@ function main() {
   // 初始化管理器
   const manager = new OffscreenManager(swPostMessage);
   manager.initManager();
+  startRepetitivePing();
 }
 
 main();
diff --git a/src/pkg/utils/wakeup-ping.ts b/src/pkg/utils/wakeup-ping.ts
new file mode 100644
index 000000000..c1f22dd8e
--- /dev/null
+++ b/src/pkg/utils/wakeup-ping.ts
@@ -0,0 +1,65 @@
+const PING_INTERVAL_MS = 14_225;
+
+/**
+ * scheduler 用于后台排程：Chrome 94+, Firefox 142+
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/Scheduler/postTask
+ */
+const nativeScheduler =
+  //@ts-ignore
+  typeof scheduler !== "undefined" && typeof scheduler?.postTask === "function" && scheduler;
+
+// 高效的 BroadcastChannel 通讯：service worker 和 offscreen 共用同一通道
+const channel = new BroadcastChannel("custom-ping");
+
+export const startRepetitivePing = () => {
+  if (typeof frameElement === "object" && typeof document === "object" && document) {
+    let counter = 0;
+    let isMutationPending = false;
+
+    const customPingHandler = (e: Event) => {
+      chrome.storage.session.set({ persistentWakeup: `${e.timeStamp}` });
+    };
+
+    const pingNode = document.createComment("0");
+
+    const incrementCounter = () => {
+      if (!isMutationPending) {
+        isMutationPending = true;
+        counter = counter > 8 ? 1 : counter + 1;
+        pingNode.data = `${counter}`;
+      }
+    };
+
+    pingNode.addEventListener("custom-ping", customPingHandler);
+
+    const pingTask = async () => {
+      channel.postMessage({});
+      incrementCounter();
+    };
+
+    const mutationObserver = new MutationObserver(() => {
+      if (isMutationPending) {
+        isMutationPending = false;
+        if (nativeScheduler) {
+          nativeScheduler.postTask(pingTask, { priority: "background", delay: PING_INTERVAL_MS });
+        } else {
+          setTimeout(pingTask, PING_INTERVAL_MS);
+        }
+      }
+    });
+    mutationObserver.observe(pingNode, { characterData: true });
+    incrementCounter();
+  }
+};
+
+export const listenWakeupPing = (onWakeupPing: (...args: any) => any) => {
+  chrome.storage.session.onChanged.addListener((obj) => {
+    // consume persistentWakeup
+    if (typeof obj.persistentWakeup !== "undefined") {
+      onWakeupPing();
+    }
+  });
+  channel.onmessage = (e) => {
+    chrome.storage.session.set({ persistentWakeup: `${e.timeStamp}` });
+  };
+};
diff --git a/src/service_worker.ts b/src/service_worker.ts
index 407a27922..85d445516 100644
--- a/src/service_worker.ts
+++ b/src/service_worker.ts
@@ -8,6 +8,7 @@ import { MessageQueue } from "@Packages/message/message_queue";
 import { ServiceWorkerMessageSend } from "@Packages/message/window_message";
 import migrate, { migrateChromeStorage } from "./app/migrate";
 import { cleanInvalidKeys } from "./app/repo/resource";
+import { listenWakeupPing } from "./pkg/utils/wakeup-ping";
 
 migrate();
 migrateChromeStorage();
@@ -59,6 +60,10 @@ async function setupOffscreenDocument() {
   }
 }
 
+export const onWakeupPing = () => {
+  console.debug("onWakeupPing"); // 不用记录在系统日志
+};
+
 function main() {
   cleanInvalidKeys();
   // 初始化管理器
@@ -77,6 +82,7 @@ function main() {
   manager.initManager();
   // 初始化沙盒环境
   setupOffscreenDocument();
+  listenWakeupPing(onWakeupPing);
 }
 
 main();

From fb8d80c0021269c2d463fbb3fc6f63206103cade Mon Sep 17 00:00:00 2001
From: cyfung1031 <44498510+cyfung1031@users.noreply.github.com>
Date: Sat, 11 Apr 2026 10:59:39 +0900
Subject: [PATCH 2/9] =?UTF-8?q?=E5=88=A0=E9=99=A4=E6=9C=AA=E4=BD=BF?=
 =?UTF-8?q?=E7=94=A8=E4=BB=A3=E7=A0=81?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/pkg/utils/wakeup-ping.ts | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/src/pkg/utils/wakeup-ping.ts b/src/pkg/utils/wakeup-ping.ts
index c1f22dd8e..fe05194e8 100644
--- a/src/pkg/utils/wakeup-ping.ts
+++ b/src/pkg/utils/wakeup-ping.ts
@@ -16,10 +16,6 @@ export const startRepetitivePing = () => {
     let counter = 0;
     let isMutationPending = false;
 
-    const customPingHandler = (e: Event) => {
-      chrome.storage.session.set({ persistentWakeup: `${e.timeStamp}` });
-    };
-
     const pingNode = document.createComment("0");
 
     const incrementCounter = () => {
@@ -30,8 +26,6 @@ export const startRepetitivePing = () => {
       }
     };
 
-    pingNode.addEventListener("custom-ping", customPingHandler);
-
     const pingTask = async () => {
       channel.postMessage({});
       incrementCounter();

From efda557e771a068736695b81091d420411c97b8b Mon Sep 17 00:00:00 2001
From: cyfung1031 <44498510+cyfung1031@users.noreply.github.com>
Date: Sat, 11 Apr 2026 11:01:51 +0900
Subject: [PATCH 3/9] =?UTF-8?q?=E4=B8=AD=E6=96=87=E6=B3=A8=E9=87=8A?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/pkg/utils/wakeup-ping.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/pkg/utils/wakeup-ping.ts b/src/pkg/utils/wakeup-ping.ts
index fe05194e8..47d40ff37 100644
--- a/src/pkg/utils/wakeup-ping.ts
+++ b/src/pkg/utils/wakeup-ping.ts
@@ -48,12 +48,14 @@ export const startRepetitivePing = () => {
 
 export const listenWakeupPing = (onWakeupPing: (...args: any) => any) => {
   chrome.storage.session.onChanged.addListener((obj) => {
-    // consume persistentWakeup
+    // 消耗 persistentWakeup
     if (typeof obj.persistentWakeup !== "undefined") {
+      // 执行任意 callback
       onWakeupPing();
     }
   });
   channel.onmessage = (e) => {
+    // 触发 chrome storage onChanged 使 service worker 保持活跃
     chrome.storage.session.set({ persistentWakeup: `${e.timeStamp}` });
   };
 };

From 86491b98162631aa79cecae193e469bf95e7e345 Mon Sep 17 00:00:00 2001
From: cyfung1031 <44498510+cyfung1031@users.noreply.github.com>
Date: Sat, 11 Apr 2026 11:09:46 +0900
Subject: [PATCH 4/9] =?UTF-8?q?=E9=87=87=E7=94=A8=E9=9A=8F=E6=9C=BA?=
 =?UTF-8?q?=E9=97=B4=E9=9A=94?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/pkg/utils/wakeup-ping.ts | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/pkg/utils/wakeup-ping.ts b/src/pkg/utils/wakeup-ping.ts
index 47d40ff37..016e95e28 100644
--- a/src/pkg/utils/wakeup-ping.ts
+++ b/src/pkg/utils/wakeup-ping.ts
@@ -1,4 +1,5 @@
-const PING_INTERVAL_MS = 14_225;
+const PING_INTERVAL_MS_1 = 13_225;
+const PING_INTERVAL_MS_2 = 17_765;
 
 /**
  * scheduler 用于后台排程：Chrome 94+, Firefox 142+
@@ -34,10 +35,11 @@ export const startRepetitivePing = () => {
     const mutationObserver = new MutationObserver(() => {
       if (isMutationPending) {
         isMutationPending = false;
+        const pingIntervalMs = Math.random() * (PING_INTERVAL_MS_2 - PING_INTERVAL_MS_1) + PING_INTERVAL_MS_1;
         if (nativeScheduler) {
-          nativeScheduler.postTask(pingTask, { priority: "background", delay: PING_INTERVAL_MS });
+          nativeScheduler.postTask(pingTask, { priority: "background", delay: pingIntervalMs });
         } else {
-          setTimeout(pingTask, PING_INTERVAL_MS);
+          setTimeout(pingTask, pingIntervalMs);
         }
       }
     });

From 8f33bd4b533492fc906e553ed4326d399fa92677 Mon Sep 17 00:00:00 2001
From: cyfung1031 <44498510+cyfung1031@users.noreply.github.com>
Date: Sat, 25 Apr 2026 06:51:32 +0900
Subject: [PATCH 5/9] Update service_worker.ts

---
 src/service_worker.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/service_worker.ts b/src/service_worker.ts
index 85d445516..648372aba 100644
--- a/src/service_worker.ts
+++ b/src/service_worker.ts
@@ -61,7 +61,8 @@ async function setupOffscreenDocument() {
 }
 
 export const onWakeupPing = () => {
-  console.debug("onWakeupPing"); // 不用记录在系统日志
+  //@ts-ignore
+  self.lastWakeupPing = new Date().toLocaleString("zh"); // 僅在後台DevTools debug用
 };
 
 function main() {

From adebb9bcaf62453cecb441586937e4451847f272 Mon Sep 17 00:00:00 2001
From: cyfung1031 <44498510+cyfung1031@users.noreply.github.com>
Date: Sat, 25 Apr 2026 09:52:31 +0900
Subject: [PATCH 6/9] =?UTF-8?q?=E6=94=B9=E4=B8=BA=20wakeupPingCommand=20?=
 =?UTF-8?q?=EF=BC=9A=E5=8F=AA=E5=9C=A8=E9=9C=80=E8=A6=81=E6=97=B6=20ping?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../service/service_worker/gm_api/gm_api.ts   | 19 +++++++++
 src/offscreen.ts                              |  4 +-
 src/pkg/utils/wakeup-ping.ts                  | 39 ++++++++++++++++---
 3 files changed, 55 insertions(+), 7 deletions(-)

diff --git a/src/app/service/service_worker/gm_api/gm_api.ts b/src/app/service/service_worker/gm_api/gm_api.ts
index 755096d21..2579d1653 100644
--- a/src/app/service/service_worker/gm_api/gm_api.ts
+++ b/src/app/service/service_worker/gm_api/gm_api.ts
@@ -54,6 +54,7 @@ import { headerModifierMap, headersReceivedMap } from "./gm_xhr";
 import { BgGMXhr } from "@App/pkg/utils/xhr/bg_gm_xhr";
 import { mightPrepareSetClipboard, setClipboard } from "../clipboard";
 import { nativePageWindowOpen } from "../../offscreen/gm_api";
+import { WakeUpCommand, wakeupPingCommand } from "@App/pkg/utils/wakeup-ping";
 
 let generatedUniqueMarkerIDs = "";
 let generatedUniqueMarkerIDWhen = "";
@@ -799,11 +800,27 @@ export default class GMApi {
     if (!sender.isType(GetSenderType.CONNECT)) {
       throw new Error("GM_xmlhttpRequest ERROR: sender is not MessageConnect");
     }
+
+    // https://github.com/scriptscat/scriptcat/issues/1343
+    let wakeupTrigger = true;
+    wakeupPingCommand(WakeUpCommand.START);
+    const wakeupStop = () => {
+      try {
+        if (wakeupTrigger) {
+          wakeupTrigger = false;
+          wakeupPingCommand(WakeUpCommand.STOP);
+        }
+      } catch {
+        // ignored
+      }
+    };
+
     const msgConn = sender.getConnect()!;
 
     let isConnDisconnected = false;
     msgConn.onDisconnect(() => {
       isConnDisconnected = true;
+      wakeupStop();
     });
 
     // 关联自己生成的请求id与chrome.webRequest的请求id
@@ -854,6 +871,7 @@ export default class GMApi {
         useFetch = isFetch || !!redirect || anonymous || isBufferStream;
       }
       const loadendCleanUp = () => {
+        wakeupStop();
         redirectedUrls.delete(markerID);
         nwErrorResults.delete(markerID);
         const reqId = scXhrRequests.get(markerID);
@@ -905,6 +923,7 @@ export default class GMApi {
         msgConn.onDisconnect(offscreenCon.disconnect.bind(offscreenCon));
       }
     } catch (e: any) {
+      wakeupStop();
       const errorMsg = `GM_xmlhttpRequest ERROR: ${e?.message || e || "Unknown Error"}`;
       if (!isConnDisconnected) {
         msgConn.sendMessage({
diff --git a/src/offscreen.ts b/src/offscreen.ts
index f8c51f8a3..4c666c2a8 100644
--- a/src/offscreen.ts
+++ b/src/offscreen.ts
@@ -2,7 +2,7 @@ import LoggerCore from "./app/logger/core";
 import MessageWriter from "./app/logger/message_writer";
 import { OffscreenManager } from "./app/service/offscreen";
 import { ServiceWorkerClientMessage } from "@Packages/message/window_message";
-import { startRepetitivePing } from "./pkg/utils/wakeup-ping";
+import { initializeWakeupPing } from "./pkg/utils/wakeup-ping";
 
 function main() {
   // 通过postMessage与SW通信,支持结构化克隆(Blob等)
@@ -16,7 +16,7 @@ function main() {
   // 初始化管理器
   const manager = new OffscreenManager(swPostMessage);
   manager.initManager();
-  startRepetitivePing();
+  initializeWakeupPing();
 }
 
 main();
diff --git a/src/pkg/utils/wakeup-ping.ts b/src/pkg/utils/wakeup-ping.ts
index 016e95e28..2f9d4e880 100644
--- a/src/pkg/utils/wakeup-ping.ts
+++ b/src/pkg/utils/wakeup-ping.ts
@@ -1,6 +1,13 @@
 const PING_INTERVAL_MS_1 = 13_225;
 const PING_INTERVAL_MS_2 = 17_765;
 
+export const WakeUpCommand = {
+  START: 0x100,
+  STOP: 0x200,
+} as const;
+
+export type WakeUpCommand = ValueOf<typeof WakeUpCommand>;
+
 /**
  * scheduler 用于后台排程：Chrome 94+, Firefox 142+
  * @link https://developer.mozilla.org/en-US/docs/Web/API/Scheduler/postTask
@@ -10,17 +17,22 @@ const nativeScheduler =
   typeof scheduler !== "undefined" && typeof scheduler?.postTask === "function" && scheduler;
 
 // 高效的 BroadcastChannel 通讯：service worker 和 offscreen 共用同一通道
-const channel = new BroadcastChannel("custom-ping");
+const channel = new BroadcastChannel("custom-ping"); // offscreen -> sw
+const channelCommand = new BroadcastChannel("custom-ping-command"); // sw -> offscreen
+let startCounter = 0;
+
+let incrementCounter = () => {};
 
-export const startRepetitivePing = () => {
+// initializeWakeupPing only execute once in offscreen
+export const initializeWakeupPing = () => {
   if (typeof frameElement === "object" && typeof document === "object" && document) {
     let counter = 0;
     let isMutationPending = false;
 
     const pingNode = document.createComment("0");
 
-    const incrementCounter = () => {
-      if (!isMutationPending) {
+    incrementCounter = () => {
+      if (startCounter >= 1 && !isMutationPending) {
         isMutationPending = true;
         counter = counter > 8 ? 1 : counter + 1;
         pingNode.data = `${counter}`;
@@ -44,10 +56,22 @@ export const startRepetitivePing = () => {
       }
     });
     mutationObserver.observe(pingNode, { characterData: true });
-    incrementCounter();
+    // incrementCounter();
+
+    channelCommand.onmessage = (e) => {
+      if (e.data === WakeUpCommand.START) {
+        startCounter++;
+        if (startCounter === 1) {
+          incrementCounter();
+        }
+      } else if (e.data === WakeUpCommand.STOP) {
+        if (startCounter > 0) startCounter--;
+      }
+    };
   }
 };
 
+// initializeWakeupPing only execute once in service worker
 export const listenWakeupPing = (onWakeupPing: (...args: any) => any) => {
   chrome.storage.session.onChanged.addListener((obj) => {
     // 消耗 persistentWakeup
@@ -61,3 +85,8 @@ export const listenWakeupPing = (onWakeupPing: (...args: any) => any) => {
     chrome.storage.session.set({ persistentWakeup: `${e.timeStamp}` });
   };
 };
+
+// wakeupPingCommand only execute in service worker
+export const wakeupPingCommand = (command: WakeUpCommand) => {
+  channelCommand.postMessage(command);
+};

From abf8da120bc23ddc94f95f9ab8c327972fee5306 Mon Sep 17 00:00:00 2001
From: cyfung1031 <44498510+cyfung1031@users.noreply.github.com>
Date: Sat, 25 Apr 2026 09:56:47 +0900
Subject: [PATCH 7/9] Update wakeup-ping.ts

---
 src/pkg/utils/wakeup-ping.ts | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/pkg/utils/wakeup-ping.ts b/src/pkg/utils/wakeup-ping.ts
index 2f9d4e880..03f636ef6 100644
--- a/src/pkg/utils/wakeup-ping.ts
+++ b/src/pkg/utils/wakeup-ping.ts
@@ -21,8 +21,6 @@ const channel = new BroadcastChannel("custom-ping"); // offscreen -> sw
 const channelCommand = new BroadcastChannel("custom-ping-command"); // sw -> offscreen
 let startCounter = 0;
 
-let incrementCounter = () => {};
-
 // initializeWakeupPing only execute once in offscreen
 export const initializeWakeupPing = () => {
   if (typeof frameElement === "object" && typeof document === "object" && document) {
@@ -31,7 +29,7 @@ export const initializeWakeupPing = () => {
 
     const pingNode = document.createComment("0");
 
-    incrementCounter = () => {
+    const incrementCounter = () => {
       if (startCounter >= 1 && !isMutationPending) {
         isMutationPending = true;
         counter = counter > 8 ? 1 : counter + 1;

From 436f58206aa982d5115c28205a38c9dbbaa405ac Mon Sep 17 00:00:00 2001
From: cyfung1031 <44498510+cyfung1031@users.noreply.github.com>
Date: Sat, 25 Apr 2026 09:58:31 +0900
Subject: [PATCH 8/9] Update wakeup-ping.ts

---
 src/pkg/utils/wakeup-ping.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pkg/utils/wakeup-ping.ts b/src/pkg/utils/wakeup-ping.ts
index 03f636ef6..86c42d376 100644
--- a/src/pkg/utils/wakeup-ping.ts
+++ b/src/pkg/utils/wakeup-ping.ts
@@ -32,7 +32,7 @@ export const initializeWakeupPing = () => {
     const incrementCounter = () => {
       if (startCounter >= 1 && !isMutationPending) {
         isMutationPending = true;
-        counter = counter > 8 ? 1 : counter + 1;
+        counter = counter & 8 ? 1 : counter + 1;
         pingNode.data = `${counter}`;
       }
     };

From 76abf19e4c4bb52a8b2d2a38ab5dabf4eb376995 Mon Sep 17 00:00:00 2001
From: cyfung1031 <44498510+cyfung1031@users.noreply.github.com>
Date: Sat, 25 Apr 2026 10:00:46 +0900
Subject: [PATCH 9/9] Update wakeup-ping.ts

---
 src/pkg/utils/wakeup-ping.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pkg/utils/wakeup-ping.ts b/src/pkg/utils/wakeup-ping.ts
index 86c42d376..ef97f9bfa 100644
--- a/src/pkg/utils/wakeup-ping.ts
+++ b/src/pkg/utils/wakeup-ping.ts
@@ -38,7 +38,7 @@ export const initializeWakeupPing = () => {
     };
 
     const pingTask = async () => {
-      channel.postMessage({});
+      channel.postMessage(true);
       incrementCounter();
     };