Error thrown when DB does not exist and autoload is set to true

[gotenxds]

[X] Bug report
[X] Documentation issue or request

So this is either a bug or just a lack of documentation and me using this wrong.

Current behavior

When using autoload, if the database already exists everything works as expected,
the issue is then on a first time load of the website the DB is yet to be created and loki throws the error

DB ERROR TypeError: The persistence adapter did not load a serialized DB string or object.
    at eval (lokidb.loki.js:5577)

I've debugged it for the last hour, and it does seem like loki is trying to create a new DB if needed, the issue lays in getAppKey function, it receives the newly created catalog and tries to search for the appKey in the store index, but it is not there.

Expected behavior

To work with on first load with autoload on

Minimal reproduction of the problem with instructions

Here is how I Initialize my DB (works perfectly if autoload is off)

const db: Loki | undefined
let loading = false

export default () => {
  if (!db && process.client && !loading) {
    loading = true

    console.log('Initializing DB')

    FullTextSearch.register()
    IndexedStorage.register()
    const lokiDb = new Loki('notAMimic')

    lokiDb.initializePersistence({ adapter: new IndexedStorage(), autosave: true, autoload: true })
      .then(() => {
        db = lokiDb
      })
      .catch((e: Error) => {
        // eslint-disable-next-line no-console
        console.log('DB ERROR', e)
      })
  }

  return db
}

Environment

Latest

Browser/Node version: Chrome 84.0.4147.125

Others:
I doubt It's relevent, but, using typescript with vuejs

[Viatorus]

Thank you for your bug report. :)

I fixed it in #179. Please have a look.