`compilerOptions` ignored in `svelte.config.ts`

[hendrik-huels]

Describe the bug

I tried using svelte.config.ts, since SvelteKit now supports it, but my compilerOptions are completely ignored.

Reproduction

The compilerOptions work in svelte.config.js, but not in svelte.config.ts:

import adapter from '@sveltejs/adapter-node';
import { vitePreprocess } from '@sveltejs/vite-plugin-svelte';

const config = {
	preprocess: vitePreprocess(),
	kit: {
		adapter: adapter(),
		experimental: {
			remoteFunctions: true
		}
	},
	compilerOptions: {
		experimental: {
			async: true
		}
	}
};

Logs

System Info

@sveltejs/kit: ^2.37.1
svelte: ^5.38.7
@sveltejs/vite-plugin-svelte: ^6.1.4

Severity

annoyance

[hendrik-huels]

Tried again a few times and now it works 🤷‍♂️ No idea what was wrong before.