一段时间以来，我一直在研究 chrome 扩展。
我有一个不持久的后台 JS 文件。在本地测试扩展时，background.js 文件正确地将结果打印到控制台并在必要时触发。
但是，一旦上传，background.js 似乎不再按预期执行并且不会向控制台打印任何内容。
这是 background.js 代码：
chrome.runtime.onInstalled.addListener(function() {
chrome.tabs.onUpdated.addListener(function(tabId, changeInfo, tab){ // listener for when first loading the page
var url = tab.url;
console.log(url);
if(url != undefined && changeInfo.status == "complete"){ // if the page is done loading, this is done bc .onUpdated has issues with multiple misfires
console.log(url);
var sites = [];
chrome.storage.sync.get({list:[]}, function(data){ // retrieve list of blackListed sites
sites = data.list;
console.log(sites);
for(var i = 0; i < sites.length; i++){
if(tab.url.includes(sites[i])){
chrome.storage.sync.get(['time'], function(data){
if(data.time != null){ // if we are in an active session
chrome.storage.sync.get(['userCausedHours'], function(data2) {
console.log(data2.userCausedHours)
chrome.storage.sync.set({'userCausedHours': data2.userCausedHours + 1}, function() {
console.log('hours = ' + data2.userCausedHours + 1) ;
})
});
}
})
}
}
})
}
});
chrome.tabs.onActivated.addListener(function(activeInfo) { // listener for when flipping back and forth between pages
var sites = [];
chrome.storage.sync.get({list:[]}, function(data){ // retrieve list of blackListed sites
sites = data.list;
console.log(sites);
// how to fetch tab url using activeInfo.tabid
chrome.tabs.get(activeInfo.tabId, function(tab){
console.log(tab.url);
for(var i = 0; i < sites.length; i++){
if(tab.url.includes(sites[i])){
chrome.storage.sync.get(['time'], function(data){
if(data.time != null){ // if we are in an active session
chrome.storage.sync.get(['userCausedHours'], function(data2) {
console.log(data2.userCausedHours)
chrome.storage.sync.set({'userCausedHours': data2.userCausedHours + 1}, function() {
console.log('hours = ' + data2.userCausedHours + 1) ;
})
});
}
})
}
}
});
})
});
});
这是我的清单：
{
"name": "Serenity",
"version": "1.01",
"description": "Productivity made fun",
"permissions" :["tabs","storage"],
"background" :{
"scripts": ["background.js"],
"persistent": false
},
"options_page": "options.html",
"browser_action": {
"default_popup": "popup.html",
"default_icon": {
"16": "images2/favicon-16x16.png",
"32": "images2/favicon-32x32.png",
"128": "images2/favicon-128.png"
}
},
"icons": {
"16": "images2/favicon-16x16.png",
"32": "images2/favicon-32x32.png",
"128": "images2/favicon-128.png"
},
"manifest_version": 2
}
正如评论中所述，问题在于我将 .onInstalled 留在了两个侦听器周围以供选项卡使用。将这些侦听器移动到全局上下文中解决了问题，我的扩展不需要 .onInstalled
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我来说两句