1 files changed, 33 insertions, 0 deletions
diff --git a/dom/workers/test/serviceworkers/force_refresh_worker.js b/dom/workers/test/serviceworkers/force_refresh_worker.js
new file mode 100644
index 000000000..f0752d0cb
--- /dev/null
+++ b/dom/workers/test/serviceworkers/force_refresh_worker.js
@@ -0,0 +1,33 @@
+var name = 'refresherCache';
+
+self.addEventListener('install', function(event) {
+  event.waitUntil(
+    Promise.all([caches.open(name),
+                 fetch('./sw_clients/refresher_cached.html'),
+                 fetch('./sw_clients/refresher_cached_compressed.html')]).then(function(results) {
+      var cache = results[0];
+      var response = results[1];
+      var compressed = results[2];
+      return Promise.all([cache.put('./sw_clients/refresher.html', response),
+                          cache.put('./sw_clients/refresher_compressed.html', compressed)]);
+    })
+  );
+});
+
+self.addEventListener('fetch', function (event) {
+  event.respondWith(
+    caches.open(name).then(function(cache) {
+      return cache.match(event.request);
+    }).then(function(response) {
+      // If this is one of our primary cached responses, then the window
+      // must have generated the request via a normal window reload.  That
+      // should be detectable in the event.request.cache attribute.
+      if (response && event.request.cache !== 'no-cache') {
+        dump('### ### FetchEvent.request.cache is "' + event.request.cache +
+             '" instead of expected "no-cache"\n');
+        return Response.error();
+      }
+      return response || fetch(event.request);
+    })
+  );
+});