| <title>Service Workers: Understanding Cache Lifetimes</title> |
| <link rel="help" href="https://slightlyoff.github.io/ServiceWorker/spec/service_worker/#cache-lifetimes"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| The `[Cache][1]` instances are not part of the browser's HTTP cache. The |
| `[Cache][1]` objects are exactly what authors have to manage themselves. The |
| `[Cache][1]` objects do not get updated unless authors explicitly request them |
| to be. The `[Cache][1]` objects do not expire unless authors delete the |
| entries. The `[Cache][1]` objects do not disappear just because the Service |
| Worker script is updated. That is, caches are not updated automatically. |
| Updates must be manually managed. This implies that authors should version |
| their caches by name and make sure to use the caches only from the version of |
| the ServiceWorker that can safely operate on. |
| }, "There are no tests for section Understanding Cache Lifetimes so far."); |