Re: [ServiceWorker] ServiceWorker's postMessage method is not defined (#479)

Made the `postMessage` run a worker, if not running: 591dd3ac740c630fe4dd1ccfa2c1046ce03ae1e9.

> This is why I mentioned several times that you need an intermediate place where you queue all these messages, that can then be dispatched when the service worker wakes up.

The above commit makes scripts (not the user agent) trigger starting up the SW, but it should be fine as scripts can already generate fetch events (xhr request, etc.) anyway. If we queue the events, `postMessage` would not guarantee the messaging happens at the right time the client requested. WDYT?

---
Reply to this email directly or view it on GitHub:
https://github.com/slightlyoff/ServiceWorker/issues/479#issuecomment-67601738