Describe the bug

After upgrading from kit 2.5.1 to 2.5.2 the follwing svelte.config.js is broken:

import adapter from "@sveltejs/adapter-static";
import { vitePreprocess } from "@sveltejs/vite-plugin-svelte";

/** @type {import('@sveltejs/kit').Config} */
const config = {
  preprocess: vitePreprocess(),

  kit: {
    // ... others

    csp: csp(),
  },
};

export default config;

function csp() {
  if (dev) return;

  let directives = {
    "default-src": ["something"],
    "style-src": ["something", "unsafe-inline"],
    "img-src": ["*", "data:"],
    "connect-src": ["self"],
    "object-src": ["data:"],
    "frame-src": ["data:"],
  };

  return { directives };
}

The error I get from typescript is:

Type '{ directives: { 'default-src': string[]; 'style-src': string[]; 'img-src': string[]; 'connect-src': string[]; 'object-src': string[]; 'frame-src': string[]; }; } | undefined' is not assignable to type '{ mode?: "nonce" | "hash" | "auto" | undefined; directives?: CspDirectives | undefined; reportOnly?: CspDirectives | undefined; } | undefined'.
  Type '{ directives: { 'default-src': string[]; 'style-src': string[]; 'img-src': string[]; 'connect-src': string[]; 'object-src': string[]; 'frame-src': string[]; }; }' is not assignable to type '{ mode?: "nonce" | "hash" | "auto" | undefined; directives?: CspDirectives | undefined; reportOnly?: CspDirectives | undefined; }'.
    The types of 'directives['default-src']' are incompatible between these types.
      Type 'string[]' is not assignable to type '(Source | ActionSource)[]'.
        Type 'string' is not assignable to type 'Source | ActionSource'.ts(2322)

I don't understand how to fix.

Reproduction

I'll post soon.

Logs

No response

System Info

npmPackages:
    @sveltejs/adapter-static: 3.0.1 => 3.0.1
    @sveltejs/kit: 2.5.2 => 2.5.2
    @sveltejs/vite-plugin-svelte: 3.0.2 => 3.0.2
    svelte: 4.2.12 => 4.2.12

Severity

blocking an upgrade

Additional Information

No response