[質問]

setInterval

chrome.alarms.create({ when:Date.now(), periodInMinutes: 1/60});
chrome.alarms.onAlarm.addListener(() => {
   // Do Action
});

New Window初期化の問題

chrome.storage.local.get(['docongTab'],(result)=>{
        chrome.tabs.get(result.docongTab, (tab)=>{
            if(tab.url.includes("j6s003.p.ssafy.io")){
                chrome.scripting.executeScript({
                    target: {tabId: result.docongTab},
                    func: ()=>{return localStorage["persist:root"];}
                }, (result)=>{
                    timerStatus = JSON.parse(JSON.parse(result[0].result).user).userTimer;
                    if(timerStatus.status == "play"){
                        timer = true;
                        playTimer(timerStatus);
                    } else {
                        timer = false;
                        chrome.action.setIcon({
                            path:"img/icon16.png"
                        });
                    }
                });
            }
        })
    })