hooks.ts for server and client, but simple redirect not working unless I use hooks.server.ts

[rielzzapps]

I start a simple test application on sveltekit, and I add this hooks.ts file:

import { redirect, type Handle } from "@sveltejs/kit";

export const handle: Handle = async ({ event, resolve }) => {
	const { pathname } = event.url;
	console.log({ pathname });

	if (pathname.startsWith('/test')) {
		throw redirect(301, '/');
	}

    return await resolve(event);
};

My expectations, because of hooks.ts, is that when I go to /test I just see the svelte welcome page.
But it gives the 404.

When I change it to hooks.server.ts, it works as expected. I try to understand why. Hooks.ts should be for server- and client-side code?