kit.paths.base can't load css and js with @sveltejs/adapter-cloudflare in production

[chientrm]

Describe the bug

Rumor has it kit.paths.base only works when using adapter-static.
I can get the app on but there is no css or js loaded.
I already prefix all URLs in my app with base from $app/paths.

Reproduction

The repo is here: chientrm/sk-base-cf-bug
Production page: https://sk-base-cf-bug.pages.dev/sk-base-cf-bug/

Work fine in local dev but on production it's not.

The title Home and Foo are supposed to be green (with css).
The link Foo and Back are supposed to be hydrated with SvelteKit instead of vanilla .
Here is the build configuration:

Logs

No response

System Info

System:
    OS: Linux 6.2 Ubuntu 23.04 23.04 (Lunar Lobster)
    CPU: (4) x64 Intel(R) Core(TM) i3-4010U CPU @ 1.70GHz
    Memory: 1.71 GB / 3.50 GB
    Container: Yes
    Shell: 5.2.15 - /bin/bash
  Binaries:
    Node: 18.15.0 - ~/.nvm/versions/node/v18.15.0/bin/node
    Yarn: 1.22.19 - ~/.nvm/versions/node/v18.15.0/bin/yarn
    npm: 9.5.0 - ~/.nvm/versions/node/v18.15.0/bin/npm
    pnpm: 8.4.0 - ~/.nvm/versions/node/v18.15.0/bin/pnpm
  npmPackages:
    @sveltejs/adapter-auto: ^2.0.0 => 2.1.0 
    @sveltejs/adapter-cloudflare: ^2.3.0 => 2.3.0 
    @sveltejs/kit: ^1.20.4 => 1.20.5 
    svelte: ^4.0.0 => 4.0.0 
    vite: ^4.3.6 => 4.3.9

Severity

blocking all usage of SvelteKit

Additional Information

Me and many of my homies want to use 1 domain to rule all the SvelteKit apps under subfolder but this bug is a no no 😢

[Conduitry]

As requested in the bug report template:

Reproductions must be short, self-contained and correct and must not contain files or code that aren't relevant to the issue — please do NOT just paste a link to your project.

[chientrm]

As requested in the bug report template:

Reproductions must be short, self-contained and correct and must not contain files or code that aren't relevant to the issue — please do NOT just paste a link to your project.

I updated the reproduction.

[chientrm]

As requested in the bug report template:

Reproductions must be short, self-contained and correct and must not contain files or code that aren't relevant to the issue — please do NOT just paste a link to your project.

Sorry for the lack of information on reproductions. Here is the details:

• The title Home and Foo are supposed to be green (with css).
• The link Foo and Back are supposed to be hydrated with SvelteKit instead of vanilla <a href>.

Here is the build configuration:

Here is the assets uploaded to Cloudflare Pages after build: