From 683e0857ec0f1b660be1894d62d777042943fbc7 Mon Sep 17 00:00:00 2001
From: Michelle Tilley <binarymuse@github.com>
Date: Wed, 19 Dec 2018 14:27:33 -0800
Subject: [PATCH] fix: properly remove caches before removing service worker
 (#1655)

---
 scripts/service-worker.js | 15 +++++++++++++++
 server.js                 |  1 +
 2 files changed, 16 insertions(+)
 create mode 100644 scripts/service-worker.js

diff --git a/scripts/service-worker.js b/scripts/service-worker.js
new file mode 100644
index 000000000..f8f40fcc4
--- /dev/null
+++ b/scripts/service-worker.js
@@ -0,0 +1,15 @@
+self.addEventListener('install', function () {
+  self.skipWaiting()
+})
+
+self.addEventListener('activate', function (event) {
+  event.waitUntil(
+    caches.keys().then(function (cacheNames) {
+      return Promise.all(
+        cacheNames.map(function (cacheName) {
+          return caches.delete(cacheName)
+        })
+      )
+    })
+  )
+})
diff --git a/server.js b/server.js
index 24c57cfda..2781d2e73 100644
--- a/server.js
+++ b/server.js
@@ -44,6 +44,7 @@ app.use(compression())
 app.use(helmet())
 app.use(sass())
 app.use('/scripts/index.js', browserify('scripts/index.js'))
+app.get('/service-worker.js', (req, res) => res.sendFile(path.resolve(__dirname, 'scripts', 'service-worker.js')))
 app.use(slashes(false))
 app.use(cookieParser())
 app.use(requestLanguage({