Javascript 服务工人';获取';favicons未触发事件
我正在使用service worker在我的站点()中缓存内容。Serviceworker正在正确安装和激活。在“fetch”事件处理程序中,我从缓存中提供内容(如果可用)。如果内容在缓存中不可用,我将获取内容并使用相同的内容更新缓存。它能够根据需要为资产提供服务并缓存新资产Javascript 服务工人';获取';favicons未触发事件,javascript,service-worker,Javascript,Service Worker,我正在使用service worker在我的站点()中缓存内容。Serviceworker正在正确安装和激活。在“fetch”事件处理程序中,我从缓存中提供内容(如果可用)。如果内容在缓存中不可用,我将获取内容并使用相同的内容更新缓存。它能够根据需要为资产提供服务并缓存新资产 importScripts('/assets/js/serviceworker-cache-polyfill.js'); var CACHE_NAME = 'adhiyan-cache-v1'; var urlsToCa
importScripts('/assets/js/serviceworker-cache-polyfill.js');
var CACHE_NAME = 'adhiyan-cache-v1';
var urlsToCache = [
'/',
'/assets/css/app.min.css',
'/assets/js/app.min.js'
];
self.addEventListener('install', function(event) {
// Perform install steps
event.waitUntil(
caches.open(CACHE_NAME)
.then(function(cache) {
console.log('Opened cache');
return cache.addAll(urlsToCache);
})
);
});
self.addEventListener('fetch', function(event) {
event.respondWith(
caches.match(event.request)
.then(function(response) {
// Cache hit - return response
if (response) {
console.log("Cache hit for '" + event.request.url + "'- return response");
return response;
}
console.log("Cache miss for '" + event.request.url + "'");
// IMPORTANT: Clone the request. A request is a stream and
// can only be consumed once. Since we are consuming this
// once by cache and once by the browser for fetch, we need
// to clone the response
var fetchRequest = event.request.clone();
return fetch(fetchRequest).then(
function(response) {
// Check if we received a valid response
if (!response || response.status !== 200 || response.type !== 'basic') {
console.log("Invalid response for '" + event.request.url + "'");
return response;
}
// Cache only '/assets'
if (event.request.url.indexOf('/assets') == -1) {
console.log("Not an asset '" + event.request.url + "'");
return response;
}
// IMPORTANT: Clone the response. A response is a stream
// and because we want the browser to consume the response
// as well as the cache consuming the response, we need
// to clone it so we have 2 stream.
var responseToCache = response.clone();
console.log("Updating cache for '" + event.request.url + "'");
caches.open(CACHE_NAME)
.then(function(cache) {
cache.put(event.request, responseToCache);
});
return response;
}
);
})
);
});
但是,我看到浏览器正在下载favicon,而没有触发“fetch”事件。我可以从ChromeDevTools的网络面板确认该行为。有人能帮我理解这种行为吗?我在代码中遗漏了什么吗
这是Chrome中的一个bug:
它应该允许服务人员拦截请求。那么,我如何告诉服务人员不要从网络获取favicon?devtools中的“我的应用程序”选项卡favicon已经显示favicon cachedYou can can can't,bug仍然打开。2020,仍然是bug2021,仍然是bug