Vue appEntrypoint cannot be asynchronous

[michaelhthomas]

Astro Info

Astro                    v4.0.8
Node                     v20.10.0
System                   macOS (arm64)
Package Manager          pnpm
Output                   static
Adapter                  none
Integrations             @astrojs/vue
                         astro-global

If this issue only occurs in one browser, which browser is a problem?

No response

Describe the Bug

Asynchronous setup scripts in appEntrypoint do not work as expected. It seems this is intended to work, but due to the Vite virtual module being synchronous, the setup script is not properly awaited. This bug appears to have been introduced in #9362.

What's the expected result?

Asynchronous setup scripts are executed before the Vue application is mounted, enabling async code to be run in the appEntrypoint file.

Link to Minimal Reproducible Example

https://stackblitz.com/edit/github-wwumrz?file=src%2Fvue-entrypoint.ts

Participation

• I am willing to submit a pull request for this issue.