mirror of
https://github.com/leporello-js/leporello-js
synced 2026-01-13 13:04:30 -08:00
31 lines
818 B
JavaScript
31 lines
818 B
JavaScript
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/*
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Should prevent navigator.serviceWorker.controller from being null on first load, but doesn't work for some reason.
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TODO: compare with
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https://googlechrome.github.io/samples/service-worker/post-message/
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which seems to work on first load
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self.addEventListener('install', function(event) {
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//event.waitUntil(self.skipWaiting()); // Activate worker immediately
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});
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self.addEventListener('activate', function(event) {
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event.waitUntil(self.clients.claim()); // Become available to all pages
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});
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*/
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let data
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self.addEventListener('message', async function(e) {
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const msg = e.data
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let reply
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if(msg.type == 'SET') {
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data = msg.data
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reply = null
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} else if(msg.type == 'GET') {
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reply = data
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} else {
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throw new Error('unknown message type: ' + msg.type)
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}
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e.ports[0].postMessage(reply)
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})
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