106 lines
3.1 KiB
HTML
106 lines
3.1 KiB
HTML
<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> |