fix: add workboxExtensions to defaults (#138)

Gomah · pi0 · commit ac8ba745b81e · 2019-02-08T13:40:02.000+03:30
diff --git a/packages/workbox/lib/defaults.js b/packages/workbox/lib/defaults.js
@@ -16,6 +16,7 @@ module.exports = {
 
   cachingExtensions: [],
   routingExtensions: [],
+  workboxExtensions: [],
 
   clientsClaim: true,
   skipWaiting: true,
