I have a function that fetch a JSON data via window.fetch and put it inside IndexedDB table via db.table.bulkPut(array_of_data).
It takes more than 10 seconds to do that because of large amount of data and it blocks UI and makes UX bad.
I have decided to run this task in a Worker, but I have not found any examples how can I make that with Dexie.js or directly with IndexedDB
Thank you for any advice :)