title: ServiceWorker / Cache / Set TTL
body: <p>with regards to this api <a href="https://developer.mozilla.org/en-US/docs/Web/API/Cache" rel="nofollow noreferrer">https://developer.mozilla.org/en-US/docs/Web/API/Cache</a>, I'd like to also set the <code>cache lifetime</code>.</p>
  
  <p>let's say, <code>cache this request for no longer than 10 minutes</code></p>