feat: cleanupOutdatedCaches

Author: pooya parsa

docs/modules/workbox.md

@@ -89,6 +89,10 @@ Workbox takes a lot of the heavy lifting out of precaching by simplifying the AP
 
 (String) Loads and inserts the contents of the specified file path into the service worker script, below autogenerated calls to `workbox.precaching.*`. You may add as many extra calls as you want to this file.
 
+### `cleanupOutdatedCaches`
+
+(Boolean) Find and remove any of the older precaches that might have been used by previous versions of Workbox.
+
 <!-- Offline -->
 
 ### `offline`

packages/workbox/lib/defaults.js

@@ -21,6 +21,7 @@ module.exports = {
     revision: undefined
   },
   cachingExtensions: [],
+  cleanupOutdatedCaches: true,
 
   // Offline
   offline: true,

packages/workbox/templates/sw.js

@@ -19,6 +19,10 @@ workbox.core.clientsClaim()
 workbox.core.skipWaiting()
 <% } %>
 
+<% if (options.cleanupOutdatedCaches) { %>
+workbox.precaching.cleanupOutdatedCaches()
+<% } %>
+
 <% if (options.offlineAnalytics) { %>
 // Enable offline Google Analytics tracking
 workbox.googleAnalytics.initialize()

test/__snapshots__/pwa.test.js.snap

@@ -70,6 +70,8 @@ workbox.core.clientsClaim()
 // Skip over the SW waiting lifecycle stage
 workbox.core.skipWaiting()
 
+workbox.precaching.cleanupOutdatedCaches()
+
 // Enable offline Google Analytics tracking
 workbox.googleAnalytics.initialize()