Component import unresolved inside boundary

[lennon03]

Describe the bug

When you wrap a +page.svelte inside a boundary all of a sudden all component imports break.

Quick workaround is to do it inside a +layout.svelte using {@render children?.()}, i don't want to do it in the root of my project though.

Reproduction

https://github.com/lennon03/svelte_boundary_component_import_bug

It really is just wrapping the entire page with a boundary, now all components are gone.
In this example it just kept loading forever, sometimes it doesn't even show the loading snippet (refresh luck).

Logs

None at runtime, ide gives me the following error:

Cannot find name 'Counter'.

System Info

System:
    OS: Linux 6.16 Arch Linux
    CPU: (4) x64 Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz
    Memory: 6.27 GB / 15.32 GB
    Container: Yes
    Shell: 5.3.3 - /usr/bin/bash
  Binaries:
    Node: 22.20.0 - ~/.local/share/mise/installs/node/22.20.0/bin/node
    npm: 10.9.3 - ~/.local/share/mise/installs/node/22.20.0/bin/npm
    bun: 1.2.22 - ~/.local/share/mise/installs/bun/1.2.22/bin/bun
  Browsers:
    Chromium: 140.0.7339.207
  npmPackages:
    @sveltejs/adapter-vercel: ^5.10.2 => 5.10.2 
    @sveltejs/kit: ^2.43.5 => 2.43.5 
    @sveltejs/vite-plugin-svelte: ^6.2.1 => 6.2.1 
    svelte: 5.38.0 => 5.38.0 
    vite: ^7.1.7 => 7.1.7

Severity

serious, but I can work around it

Additional Information

This shouldn't really be a priority.

[dummdidumm]

Your boundary wraps everything, including the script and style tags. That is valid but it means those tags interpreted verbatim and not processed any further.
You need to wrap only your template code and leave script/style at the top level.

[lennon03]

I know but then it won't work with top level await calls

[MotionlessTrain]

top level await calls are supported as of svelte 5.39 and sveltekit 2.43 (those versions add the ssr part as well)

[lennon03]

yes but within a boundary