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docs(service-worker): minor fixes/improvements (#23339) 

PR Close #23339
This commit is contained in:
George Kalpakas 2018-04-12 18:34:57 +03:00 committed by Igor Minar
parent 639d52fe71
commit d1e716b2cb
3 changed files with 136 additions and 141 deletions
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3
aio/content/guide/service-worker-config.md
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@ -1,5 +1,3 @@
{@a glob}
# Service worker configuration
#### Prerequisites
@ -166,4 +164,3 @@ The Angular service worker can use either of two caching strategies for data res
* `performance`, the default, optimizes for responses that are as fast as possible. If a resource exists in the cache, the cached version is used. This allows for some staleness, depending on the `maxAge`, in exchange for better performance. This is suitable for resources that don't change often; for example, user avatar images.
* `freshness` optimizes for currency of data, preferentially fetching requested data from the network. Only if the network times out, according to `timeout`, does the request fall back to the cache. This is useful for resources that change frequently; for example, account balances.

4
aio/content/guide/service-worker-devops.md
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@ -51,7 +51,7 @@ caching an invalid resource. In a normal HTTP cache, a hard refresh
or cache expiration limits the negative effects of caching an invalid
file. A service worker ignores such constraints and effectively long
caches the entire app. Consequently, it is essential that the service worker
get the correct content.
gets the correct content.
To ensure resource integrity, the Angular service worker validates
the hashes of all resources for which it has a hash. Typically for
@ -298,7 +298,7 @@ design attempts to minimize the impact of such problems, the
Angular service worker contains several failsafe mechanisms in case
an administrator ever needs to deactivate the service worker quickly.
## Fail-safe
### Fail-safe
To deactivate the service worker, remove or rename the
`ngsw-config.json` file. When the service worker's request

8
aio/content/guide/service-worker-getting-started.md
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@ -99,11 +99,10 @@ using an example application.
Because `ng serve` does not work with service workers, you must use a separate HTTP server to test your project locally. You can use any HTTP server. The example below uses the [http-server](https://www.npmjs.com/package/http-server) package from npm. To reduce the possibility of conflicts, test on a dedicated port.
To serve with `http-server`, change to the directory containing your web files and start the web server:
To serve the app, start `http-server` and specify the directory containing your web files and the port:
```sh
cd dist
http-server -p 8080
http-server dist -p 8080
```
### Initial load
@ -169,8 +168,7 @@ next step is understanding how updates work.
```sh
ng build --prod
cd dist
http-server -p 8080
http-server dist -p 8080
```
### Updating your application in the browser