Is Service Worker intended to replace or coexist with Appcache?

Question

Is ServiceWorker intended to replace Appcache, or is the intention that the two will coexist? Phrased another way, is appcache about to become deprecated?

Answer 1

I must say that Services Worker is not only the replacement for AppCache, but it’s far more capable. An AppCache can’t be partially updated, a byte-by-byte manifest comparison to trigger the update seems odd and there are several use cases leading to security and terrible usability problems.

Even Chrome and Firefox are planning to stop support for AppCache in the near future. Now that service workers are supported by Chrome, Opera, and Firefox.Also, The noises coming from Microsoft and Safari have been positive with respect to implementation and under consideration.