sw.js
This script should not be not be installed directly. It is a library for other scripts to include with the meta directive // @require https://update.greasyfork.org/scripts/473118/1235563/sw.js
// ==UserScript==
// @name 测试js
// @namespace
// @include *
// @version 0.0.1
// @description 测试专用js
// @author ymzhao
// ==/UserScript==
(function () {
// this
this.addEventListener('install', function (event) {
console.log('Service Worker install');
});
self.addEventListener('install', event => {
// 安装中
event.waitUntil(
// 可以预缓存重要的和长期的资源
);
});
self.addEventListener('activate', event => {
// 已激活，成功控制客户端
// 如果activate足够快，clients.claim的调用在请求之前，就能保证第一次请求页面也能拦截请求
clients.claim();
event.waitUntil(
// 可以在这里清除旧的缓存
);
});
self.addEventListener('fetch', event => {
const url = new URL(event.request.url);
// 拦截/api/user接口的请求，返回自定义的response
if (url.pathname == '/api/user') {
event.respondWith(
// response body只能接受String, FormData, Blob等类型，所以这里序列化
new Response(JSON.stringify({ name: 'Javen' }), {
headers: {
'Content-Type': 'application/json',
},
})
);
}
});
})