sw.js
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/* eslint-env worker */
/* global FetchEvent */
self.workbox.skipWaiting();
self.workbox.clientsClaim();
const isDev = self.location.search.indexOf('dev') >= 0;
const staticDomian = isDev ? /^http:\/\/localhost:5001/i : /^https:\/\/(.*)cdn\.yoho\.cn/i;
const webDomian = isDev ? /^http:\/\/localhost:6001/i : /^https:\/\/m.yohobuy.com/;
// 定义缓存前缀
const NAME_CACHE_PREFIX = 'yoho-cache';
const precaches = [
{
url: '/offline.html',
revision: 'offline-revision-0.0.2'
},
{
url: '//cdn.yoho.cn/pwa/404.png',
revision: '404-revision-0.0.1'
}].concat(self.__precacheManifest || []);
self.workbox.precaching.precacheAndRoute(precaches);
/**
* 需要缓存的路径
*/
// const CACHED_PATH = [
// 'boys',
// 'girls',
// 'kids',
// 'lifestyle',
// 'cate',
// 'list',
// 'search',
// 'product',
// 'shop',
// 'guang',
// 'offline.html'
// ];
// let routeRegExp = new RegExp(`^\/(${CACHED_PATH.join('|')})`);
// 自定义缓存
self.workbox.routing.registerRoute(args => {
if (/sockjs-node\/info/.test(args.url.href)) {
return false;
}
if (self.__precacheManifest.find(precahce => args.url.href.indexOf(precahce.url) >= 0)) {
return false;
}
if (staticDomian.test(args.url.href)) {
return true;
}
return false;
}, self.workbox.strategies.staleWhileRevalidate({
cacheName: `${NAME_CACHE_PREFIX}-statics`,
plugins: [
new self.workbox.expiration.Plugin({
maxEntries: 1000,
maxAgeSeconds: 7 * 24 * 60 * 60 // 7 day
})
]
}));
// 所有网络走 worker，异常时增加离线页面
self.workbox.routing.registerRoute(args => {
let cached = webDomian.test(args.url.href);
if (args.event.request.headers.get('x-requested-with') === 'XMLHttpRequest' &&
args.event.request.method !== 'GET') {
cached = false;
}
return cached;
}, args => {
return self.workbox.strategies.networkFirst({
cacheName: `${NAME_CACHE_PREFIX}-runtime`,
plugins: [
new self.workbox.expiration.Plugin({
maxEntries: 300,
maxAgeSeconds: 12 * 60 * 60 // 12 小时
})
]
}).handle(args).then(res => {
if (res || args.event.request.mode !== 'navigate') {
// TODO report
return res;
}
// navigate 请求失败后，返回网络异常页面
return caches.match('offline.html');
});
});
/**
* webp 处理
* 匹配非 webp 的 cdn 图片资源，缓存其 webp 格式
*/
self.workbox.routing.registerRoute(args => {
let useWebp = false;
let supportWebp = /image\/webp/i.test(args.event.request.headers.get('Accept'));
if (!supportWebp) {
return useWebp;
}
if (/^https:\/\/(.*)static\.yhbimg\.com(.*)(png|jpg|jpeg)\?(imageView|imageMogr)(.*)/.test(args.url.href) &&
/^(?!.*format\/).*/.test(args.url.href)) {
useWebp = true;
}
return useWebp;
}, args => {
// 重新构造 fetch 请求
args.event = new FetchEvent(args.event.type, {
request: new Request(args.event.request.url + '/format/webp'),
clientId: args.event.clientId,
isReload: args.event.isReload
});
return self.workbox.strategies.staleWhileRevalidate({
cacheName: `${NAME_CACHE_PREFIX}-images`,
plugins: [
new self.workbox.expiration.Plugin({
maxEntries: 100,
maxAgeSeconds: 24 * 60 * 60 // 24 小时
})
]}).handle(args);
});