How to handle a user abort by Deno.serve

const abortController = new AbortController();
Deno.addSignalListener('SIGINT', () => {
    abortController.abort();
});

Deno.serve(
    {
        port:3000,
        signal: abortController.signal
    },
    async (req) => {
        if (req.body) {
            try {
                console.log('Start');
                const body = await req.formData();
                for (const key of body.keys()) {
                    console.log(key);
                }
                console.log('Never reached, when user abort.');
            } catch {
                // Will not be triggered on abort.
                console.log('Error on await req.formData()');
            }
        }

        return new Response("Hello, World!");
    }
);