async fetch(request) {
    const t1 = Date.now();
    const response = await fetch(request);
    const originTimeMs = Date.now() - t1;
    const logflareEventBody = { /* ... */ };
    await fetch(/* send the stats to a dedicated worker that does the rest of the processing and uses waitUntil */);
    return response;
}

async fetch(request) {
    const t1 = Date.now();
    const response = await fetch(request);
    const originTimeMs = Date.now() - t1;
    const logflareEventBody = { /* ... */ };
    await fetch(/* send the stats to a dedicated worker that does the rest of the processing and uses waitUntil */);
    return response;
}