How to add headers to static asset responses with Solid Start?

export default defineConfig({
    start: {
        middleware: "./src/middleware/cross-origin-isolation.ts",
        ssr: false,
        server: {
            routeRules: {
                "*": {
                    headers: {
                        "Cross-Origin-Embedder-Policy": "require-corp",
                        "Cross-Origin-Opener-Policy": "same-origin",
                    },
                },
            },
        },
    },
}