From e9cfecb97ea8798420be7853a0e0925f20bb78ba Mon Sep 17 00:00:00 2001
From: eight <eight04@gmail.com>
Date: Tue, 16 Apr 2019 19:27:45 +0800
Subject: [PATCH] Fix: onAlarms is registered multiple times

---
 background/update.js | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/background/update.js b/background/update.js
index 328c8611..e2ed3e0e 100644
--- a/background/update.js
+++ b/background/update.js
@@ -37,6 +37,7 @@
 
   prefs.subscribe(['updateInterval'], schedule);
   schedule();
+  chrome.alarms.onAlarm.addListener(onAlarm);
 
   return {checkAllStyles, checkStyle, STATES};
 
@@ -248,10 +249,8 @@
       chrome.alarms.create(ALARM_NAME, {
         when: Date.now() + Math.max(MIN_INTERVAL_MS, interval - elapsed),
       });
-      chrome.alarms.onAlarm.addListener(onAlarm);
     } else {
       chrome.alarms.clear(ALARM_NAME, ignoreChromeError);
-      chrome.alarms.onAlarm.removeListener(onAlarm);
     }
   }