temp
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106
sw/index.html
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106
sw/index.html
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<html>
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<head>
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<title>Service Worker</title>
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</head>
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<body>
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<script>
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window.clearSW = () => {
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navigator.serviceWorker.getRegistrations().then((registrations) => {
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registrations.forEach((registration) => {
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registration.unregister();
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});
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});
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}
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</script>
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<script>
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if ('serviceWorker' in navigator) {
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window.addEventListener('load', () => {
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navigator.serviceWorker.register('./sw.js')
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.then(registration => {
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console.log('Service Worker registered with scope:', registration.scope);
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// 检查是否有新版本的 Service Worker
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checkForNewVersion(registration);
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})
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.catch(error => {
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console.error('Service Worker registration failed:', error);
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});
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});
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}
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function checkForNewVersion(registration) {
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registration.onupdatefound = () => {
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const installingWorker = registration.installing;
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console.log('A new version is being installed:', installingWorker);
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installingWorker.onstatechange = () => {
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if (installingWorker.state === 'installed') {
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if (navigator.serviceWorker.controller) {
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console.log('New content is available; please refresh.');
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// 显示一个提示给用户，告知他们有新版本可用
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showUpdateNotification();
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} else {
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console.log('Content is cached for offline use.');
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}
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}
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};
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};
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}
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function showUpdateNotification() {
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// 显示一个通知给用户，告知他们有新版本可用
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if (document.hasFocus()) {
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// 如果页面已经聚焦，直接显示通知
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alert('New content is available; please refresh.');
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window.location.reload();
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} else {
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// 如果页面没有聚焦，可以使用 Notification API
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if (Notification.permission === 'granted') {
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new Notification('New content is available; please refresh.');
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} else if (Notification.permission !== 'denied') {
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Notification.requestPermission().then(permission => {
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if (permission === 'granted') {
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new Notification('New content is available; please refresh.');
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}
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});
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}
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}
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}
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</script>
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<script>
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// fetch('/api/s1/sw/js/123.js')
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// .then(res => res.text())
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// .then(text => {
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// console.log('text', text);
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// });
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// fetch('/api/s1/sw/js/123.js', {
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// method: 'POST',
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// body: JSON.stringify({
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// a: 1,
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// }),
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// })
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// .then(res => res.text())
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// .then(text => {
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// console.log('text', text);
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// });
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</script>
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<script type="module">
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const url = new URL('/api/s1/sw/js/123.js', window.location.origin);
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import(url).then(res => {
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console.log('res', res);
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});
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// import(url).then(res => {
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// console.log('res2', res);
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// });
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fetch(url).then(res => {
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console.log('res3', res);
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});
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fetch(url).then(res => {
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console.log('res4', res);
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});
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</script>
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</body>
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</html>
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17
sw/package.json
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17
sw/package.json
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{
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"name": "sw",
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"version": "0.0.1",
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"description": "",
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"main": "index.js",
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"scripts": {
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"test": "echo \"Error: no test specified\" && exit 1"
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},
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"keywords": [],
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"author": "abearxiong <xiongxiao@xiongxiao.me> (https://www.xiongxiao.me)",
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"license": "MIT",
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"packageManager": "pnpm@10.6.2",
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"type": "module",
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"devDependencies": {
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"vite": "^6.2.2"
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}
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}
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53
sw/public/sw.js
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53
sw/public/sw.js
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async function readStream(stream) {
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const reader = stream.getReader();
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let result = '';
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while (true) {
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const { done, value } = await reader.read();
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if (done) {
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break;
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}
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result += new TextDecoder().decode(value);
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}
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return result;
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}
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self.addEventListener('fetch', async (event) => {
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const url = new URL(event.request.url);
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// Check if the request is for the specific path
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if (url.pathname.startsWith('/api/s1/sw/js/')) {
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console.log('event', event);
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console.log('url', url, event.request.method, 'mode', event.request.mode, event.request.destination);
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// const body = event.request.body;
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// const method = event.request.method;
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// const bodyText = await readStream(body);
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// console.log('body', bodyText);
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console.log('event.request', event.request.destination);
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event.respondWith(
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new Response('export const a = 1', {
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status: 200,
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headers: {
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'Content-Type': 'application/javascript',
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},
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}),
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);
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return;
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}
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if (url.pathname.startsWith('/api/s1/sw/js/')) {
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event.respondWith(
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fetch(event.request).then((response) => {
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// Clone the response to modify headers
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const newHeaders = new Headers(response.headers);
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newHeaders.set('Content-Type', 'application/javascript');
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// Return a new response with the modified headers
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return new Response(response.body, {
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status: response.status,
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statusText: response.statusText,
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headers: newHeaders,
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});
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}),
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);
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}
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});
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