PWA problem with Vue3+service worker+keep-alive - progressive-web-apps

Question

I have a problem with Vue3+service worker+keep-alive.
I use keep-live in template
<q-page-container>
<router-view v-slot="{ Component }">
<keep-alive :include="['WorkPage']">
<component :is="Component" :key="$route.fullPath"/>
</keep-alive>
</router-view>
</q-page-container>
create queue
createWorkQueue = new Queue('createWorkQueue', {
onSync: async ( {queue} ) => {
let entry
while (entry = await queue.shiftRequest()) {
try {
await fetch(entry.request);
const channel = new BroadcastChannel('sw-messages-work');
channel.postMessage({msg: 'offline-work-uploaded'});
} catch (error) {
await queue.unshiftRequest(entry);
throw error;
}
}
}
})
addEventListener('fetch'
self.addEventListener('fetch', (event) => {
if (event.request.url.endsWith('/api/ins_new_work')) {
const bgSyncLogic = async () => {
try {
const response = await fetch(event.request.clone())
return response
} catch (error) {
await createWorkQueue.pushRequest({request: event.request})
return error
}
}
event.respondWith(bgSyncLogic())
}
})
when in offline I send form - createWorkQueue.pushRequest hangs to 5 minutes
if I delete from keep-alive - WorkPage - then pushRequest works well
but I need keep-alive page. How can I solve this?

Answer 1

I found!!
I use IndexedDB library and for show offline message I read from DB information
const db = await openDB('workbox-background-sync')
but in first time - table 'requests' don't create
I insert next code
const db = await openDB('workbox-background-sync', undefined, { upgrade(db) { db.createObjectStore('requests') }})
and works well