blob: 47dd2f843070603f6e994e96225ef0889f6fdffd (
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<html>
<head>
<script id='worker' type='javascript/worker'>
onmessage = function (e) {
const file = e.data[0]
const db = indexedDB.open('', {})
db.onupgradeneeded = function (event) {
const store = event.target.result.createObjectStore('IDBStore_0', {})
store.add({}, '')
}
db.onsuccess = function (event) {
const transaction = event.target.result.transaction('IDBStore_0', 'readwrite')
const store = transaction.objectStore('IDBStore_0')
const cursor = store.openCursor()
cursor.onsuccess = function (event) {
event.target.result.update({
data: file
})
event.target.result.advance(1)
}
event.target.result.close()
}
}
</script>
<script>
let worker;
function start () {
const file = new File([], 'x')
const blob = new Blob([document.getElementById('worker').textContent], { type: 'text/javascript' })
worker = new Worker(window.URL.createObjectURL(blob))
worker.postMessage([file], [])
}
document.addEventListener('DOMContentLoaded', start)
</script>
</head>
</html>
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