SvelteKit CSP bug repro

Steps to reproduce in isolation

1. npm create svelte@latest my-app
2. cd my-app
3. npm install
4. npm add @svelte/adapter-node
5. Edit svelte.config.js
6. Replace auto adapter with adapter-node
7. Add kit.csp.directives for style-src with 'unsafe-inline'
8. Add kit.inlineStyleThreshold with a value of e.g. 5 * 1024
9. npm run build
10. node build
11. Open the webpage (http://localhost:3000) in your browser
12. Check console for errors

Steps to reproduce in this repo

1. git clone https://github.com/lietu/sveltekit-csp-demo
2. cd sveltekit-csp-demo
3. npm install
4. npm run build
5. node build
6. Open the webpage (http://localhost:3000) in your browser
7. Check console for errors