TypeError: parent is null : Unhandled error during execution of scheduler flush

[nethriis]

Vue version

3.4.21

Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-nxra3f

Steps to reproduce

Once everything installed on the stackblitz repo you must :

• Open preview in new navigator tab
• Click on "Other" under the "Sidebar" section
• Reload the page via your navigator reload button
• Then go back via your navigator back button (not via "go home" link)

What is expected?

The previous page with the layout and content successfully rendered

What is actually happening?

A page with no content and an error :

[Vue warn]: Unhandled error during execution of scheduler flush. This is likely a Vue internals bug. Please open an issue at https://github.com/vuejs/core . 
  at <Default key=0 > 
  at <App>

chunk-2FDUVFJ5.js?v=85590772:9618 Uncaught (in promise) TypeError: Cannot read properties of null (reading 'insertBefore')
    at insert (chunk-2FDUVFJ5.js?v=85590772:9618:12)
    at mountElement (chunk-2FDUVFJ5.js?v=85590772:6994:5)
    at processElement (chunk-2FDUVFJ5.js?v=85590772:6904:7)
    at patch (chunk-2FDUVFJ5.js?v=85590772:6772:11)
    at ReactiveEffect.componentUpdateFn [as fn] (chunk-2FDUVFJ5.js?v=85590772:7462:11)
    at ReactiveEffect.run (chunk-2FDUVFJ5.js?v=85590772:430:19)
    at instance.update (chunk-2FDUVFJ5.js?v=85590772:7586:17)
    at setupRenderEffect (chunk-2FDUVFJ5.js?v=85590772:7596:5)
    at mountComponent (chunk-2FDUVFJ5.js?v=85590772:7364:7)
    at processComponent (chunk-2FDUVFJ5.js?v=85590772:7318:9)

System Info

System:
    OS: Windows 11 10.0.22631
    CPU: (20) x64 13th Gen Intel(R) Core(TM) i9-13900H
    Memory: 16.01 GB / 31.61 GB
  Binaries:
    Node: 20.10.0 - C:\Program Files\nodejs\node.EXE
    npm: 10.2.3 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Edge: Chromium (122.0.2365.66)
    Internet Explorer: 11.0.22621.1
  npmPackages:
    vue: ^3.4.21 => 3.4.21

Any additional comments?

No response

[nethriis]

The solution is simple, you just have to wrap the Suspense inside a div and that's it!

See this :
https://stackblitz.com/edit/vitejs-vite-ts8gyi