forked from M-Labs/web2019
41 lines
1.2 KiB
JavaScript
41 lines
1.2 KiB
JavaScript
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(function () {
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var swRegistration;
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var newWorker;
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var isRefreshing = false;
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var pathname = window.location.pathname;
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var deferredPrompt;
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window.addEventListener('beforeinstallprompt', (e) => {
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console.log('[AS] Before install prompt');
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// Prevent Chrome 67 and earlier from automatically showing the prompt
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e.preventDefault();
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// Stash the event so it can be triggered later.
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deferredPrompt = e;
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});
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if ('serviceWorker' in navigator) {
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console.info('Service Worker is supported');
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window.addEventListener('load', function () {
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navigator.serviceWorker.register('/sw.js', {
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updateViaCache: 'all',
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}).then(function (registration) {
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swRegistration = registration;
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console.log('[SW] registration successful with scope: ', swRegistration.scope);
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console.log('[SW] is waiting: ', swRegistration.waiting);
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navigator.serviceWorker.addEventListener('controllerchange', function () {
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if (isRefreshing) {
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return;
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}
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window.location.reload();
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isRefreshing = true;
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});
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}, function (err) {
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console.log('[SW] registration failed: ', err);
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});
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});
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}
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})();
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