From 0fc9430056360fe95618db55f59c89f3877d9169 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 6 Mar 2026 23:01:07 +0000
Subject: [PATCH 1/3] Initial plan


From dfe03155a595e5430eddc940515a01c3b6a646c5 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 6 Mar 2026 23:02:56 +0000
Subject: [PATCH 2/3] fix: guard setInterval with globalThis to prevent
 multiple cleanup loops

Co-authored-by: ormidales <46538211+ormidales@users.noreply.github.com>
---
 background.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/background.js b/background.js
index 8362d4f..699b232 100644
--- a/background.js
+++ b/background.js
@@ -126,7 +126,10 @@ const cleanupStaleTrackedRequests = (now = Date.now()) => {
   }
 };
 
-setInterval(cleanupStaleTrackedRequests, REQUEST_TRACK_TTL_MS);
+if (globalThis.cleanupIntervalId) {
+  clearInterval(globalThis.cleanupIntervalId);
+}
+globalThis.cleanupIntervalId = setInterval(cleanupStaleTrackedRequests, REQUEST_TRACK_TTL_MS);
 
 const updateExceptionDomains = (domains = []) => {
   exceptionDomains.clear();

From 874cebba1010bcf32a0cbaafc4000f74e6ac22eb Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sat, 7 Mar 2026 11:45:20 +0000
Subject: [PATCH 3/3] fix: namespace globalThis interval key and add type guard
 before clearInterval

Co-authored-by: ormidales <46538211+ormidales@users.noreply.github.com>
---
 background.js | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/background.js b/background.js
index 699b232..12ee5ac 100644
--- a/background.js
+++ b/background.js
@@ -126,10 +126,12 @@ const cleanupStaleTrackedRequests = (now = Date.now()) => {
   }
 };
 
-if (globalThis.cleanupIntervalId) {
-  clearInterval(globalThis.cleanupIntervalId);
+const CLEANUP_INTERVAL_KEY = "__acceptLangExt_cleanupIntervalId";
+const existingCleanupIntervalId = globalThis[CLEANUP_INTERVAL_KEY];
+if (typeof existingCleanupIntervalId === "number" || typeof existingCleanupIntervalId === "object") {
+  clearInterval(existingCleanupIntervalId);
 }
-globalThis.cleanupIntervalId = setInterval(cleanupStaleTrackedRequests, REQUEST_TRACK_TTL_MS);
+globalThis[CLEANUP_INTERVAL_KEY] = setInterval(cleanupStaleTrackedRequests, REQUEST_TRACK_TTL_MS);
 
 const updateExceptionDomains = (domains = []) => {
   exceptionDomains.clear();