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index.html
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<!DOCTYPE html>
<html>
<head>
<title>CHAT!!!</title>
<link rel="manifest" href="manifest.json" />
<link rel="stylesheet" href="styles.css" />
</head>
<body>
<div class="container">
<div id="messages">LOADING MESSAGES FROM SPACE 🚀</div>
<form id="form">
<textarea id="textarea" rows="4"></textarea>
<button type="submit">SEND 💨</button>
</form>
<!-- #3: Sync -->
<button id="subscribe" type="button">SUBSCRIBE</button>
</div>
<script src="idb-keyval-min.js"></script>
<script>
let reg;
let sub;
let enableSw = true;
let enableSub = true;
let enablePush = true;
if (enableSw && 'serviceWorker' in navigator) {
console.log('Service Worker 👍 ');
navigator.serviceWorker.register('service-worker.js').then(function() {
return navigator.serviceWorker.ready;
}).then(function(serviceWorkerRegistration) {
reg = serviceWorkerRegistration;
console.log('Service Worker is ready 👋', reg);
}).catch(function(error) {
console.log('Service Worker Error ⚠️', error);
});
}
</script>
<script src="/chat.js"></script>
<!-- #2: Push -->
<script src="/subscribe.js"></script>
</body>
</html>