1 files changed, 7 insertions, 0 deletions
diff --git a/src/service-worker.js b/src/service-worker.js
new file mode 100644
index 00000000..7952231d
--- /dev/null
+++ b/src/service-worker.js
@@ -0,0 +1,7 @@
+self.addEventListener('fetch', function(event) {
+  event.respondWith(
+      caches.match(event.request).then(function(response) {
+          return response || fetch(event.request);
+      })
+  );
+});