* Multithreaded Programs in JavaScript: 
    * developer.mozilla: [[https://developer.mozilla.org/en-US/docs/Web/Guide/Performance/Using_web_workers|Using_web_workers]]
    * t3n: [[http://t3n.de/news/web-worker-javascript-556677/|So funktionieren Web-Worker]]
    * **Service Worker:** [[https://de.wikipedia.org/wiki/Service_Worker|..wp]] //(??offline-Betrieb)//