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Ember Service Worker Asset Cache

ember-service-worker-asset-cache is built and maintained by DockYard, contact us for expert Ember.js consulting.

An Ember Service Worker plugin that caches an Ember app's asset files

By default it caches all files in the assets folder.

F#$& my assets aren't updating in development mode

Turn on the "Update on reload" setting in the Application > Service Workers menu in the Chrome devtools.

Installation

ember install ember-service-worker-asset-cache

Configuration

You can configure extra files to include and if your app's file are on a CDN, you can configure the CDN url.

The configuration is done in the ember-cli-build.js file:

const EmberApp = require('ember-cli/lib/broccoli/ember-app')

module.exports = function(defaults) {
  var app = new EmberApp(defaults, {
    'asset-cache': {
      // which asset files to include, glob paths are allowed!
      // defaults to `['assets/**/*']`
      include: [
        'assets/admin-engine.js',
        'fonts/font-awesome.*'
      ],

      // which asset files to exclude, glob paths are allowed!
      exclude: [
        '**/*.gif'
      ],

      // manually include extra external assets
      manual: [
        'https://cdn.example.com/foo-library.js'
      ],

      // Changing this version number will bust the cache, but you probably do not
      // want to be doing this manually, but rather using `versionStrategy` as
      // explained here http://ember-service-worker.com/documentation/configuration/#versioning
      version: '1',

      // if your files are on a CDN, put the url of your CDN here
      // can be absolute or relative
      // overwritten by `fingerprint.prepend`
      prepend: 'https://cdn.example.com/',

      // mode of the fetch request. Use 'no-cors' when you are fetching resources
      // cross origin (different domain) that do not send CORS headers
      requestMode: 'cors',

      // Prevent errors (status of 400 or greater) on a single file
      // from not updating other files that have no issues
      lenientErrors: false
    }
  });

  return app.toTree();
};

Note that setting requestMode to 'no-cors' will have some drawbacks, like not being able to distinguish between successful and failed responses. Use it only when needed.

Authors

Versioning

This library follows Semantic Versioning

Want to help?

Please do! We are always looking to improve this library. Please see our Contribution Guidelines on how to properly submit issues and pull requests.

Legal

DockYard, Inc. © 2016

@dockyard

Licensed under the MIT license

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