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preload service-worker

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This commit is contained in:
Pooya Parsa 2020-11-04 00:43:16 +01:00
parent c43cf33c95
commit dd7f32324f
1 changed files with 27 additions and 2 deletions
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29
packages/nitro/src/targets/sw/index.html
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@ -1,16 +1,41 @@
<!DOCTYPE html>
<html>
<body>
Loading...
<script>
if (!('serviceWorker' in navigator)) {
throw new Error('Browser not supported!')
}
let timeout
const stopTimer = () => {
if (timeout) {
clearTimeout(timeout)
}
}
const startTimer = () => {
stopTimer()
timeout = setTimeout(() => { document.write('Loading...') }, 3000)
}
startTimer()
window.addEventListener('load', () => {
startTimer()
navigator.serviceWorker.register('/nuxt.sw.js').then((registration) => {
startTimer()
console.log('ServiceWorker registration successful with scope:', registration.scope)
window.location.reload()
fetch(window.location.href).then(r => r.text()).then(html => {
stopTimer()
if (html.includes('/nuxt.sw.js')) {
console.error('Soon!')
return
}
document.open()
document.write(html)
document.close()
}).catch(() => {
stopTimer()
window.location.reload(false)
})
}).catch(error => {
console.error('ServiceWorker registration failed:', error)
document.write(error)