feat(workbox): support pass config object to workbox.setConfig (#95)

Author: CarterLi

Diff for: docs/modules/workbox.md

@@ -33,6 +33,8 @@ workbox: {
 
 **routingExtensions** (String) - Loads and inserts the contents of the specified file path into the service worker script, below autogenerated calls to `workbox.routing.*`. You may add as many extra calls as you want to this file.
 
+**config** (Object) - Sets custom configurations to workbox using `workbox.setConfig()`. For example, set `{ modulePathPrefix: '/third_party/workbox/' }` to use local workbox files instead of google CDN.
+
 For list of all available options see [here](https://developers.google.com/web/tools/workbox/modules/workbox-build)
 
 ### Adding custom runtimeCaching items (For CDN)

Diff for: packages/workbox/index.js

@@ -80,6 +80,7 @@ function getOptions (moduleOptions) {
     directoryIndex: '/',
     cachingExtensions: null,
     routingExtensions: null,
+    config: null,
     cacheId: process.env.npm_package_name || 'nuxt',
     clientsClaim: true,
     skipWaiting: true,
@@ -144,6 +145,7 @@ function addTemplates (options) {
       offlineAssets: options.offlineAssets,
       cachingExtensions: options.cachingExtensions,
       routingExtensions: options.routingExtensions,
+      config: options.config,
       importScripts: [options.wbDst].concat(options.importScripts || []),
       runtimeCaching: [].concat(options._runtimeCaching, options.runtimeCaching).map(i => (Object.assign({}, i, {
         urlPattern: i.urlPattern,

Diff for: packages/workbox/package.json

@@ -8,6 +8,6 @@
     "access": "public"
   },
   "dependencies": {
-    "workbox-build": "^3.4.1"
+    "workbox-build": "^3.5.0"
   }
 }

Diff for: packages/workbox/templates/sw.template.js

@@ -1,5 +1,9 @@
 importScripts(<%= options.importScripts.map((i) => `'${i}'`).join(', ') %>)
 
+<% if (options.config) {%>
+workbox.setConfig(<%= JSON.stringify(options.config, null, 2) %>)
+<% } %>
+
 workbox.precaching.precacheAndRoute([], <%= JSON.stringify(options.wbOptions, null, 2) %>)
 <% if (options.offlineAssets.length) { %>
 workbox.precaching.precacheAndRoute([<%= options.offlineAssets.map((i) => `'${i}'`).join(', ') %>])