worker.start must async, otherwise msw will slow then the first request

[Fallsleep]

In my project, the app will get user info if cookie has user token immediately after page loaded.
After upgrage to 2.x, this request run into backend server instead of msw worker.
I have long time not working with this project, and today I work on it again.

After some try and search, I find if worker.start set to async await, the request run well:

const { worker } = await import('./browser')
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await worker.start({
  onUnhandledRequest: 'bypass',
  serviceWorker: {
    // if homepage not '/'
    url: `${import.meta.env.VITE_APP_ROUTER_BASE_URL}/mockServiceWorker.js`,
  },
})