1 files changed, 12 insertions, 0 deletions
diff --git a/dom/cache/test/mochitest/idle_worker.js b/dom/cache/test/mochitest/idle_worker.js
new file mode 100644
index 0000000000..baba3ed4dc
--- /dev/null
+++ b/dom/cache/test/mochitest/idle_worker.js
@@ -0,0 +1,12 @@
+// Touch CacheStorage, but then idle and do nothing.
+const name = "idle_worker_cache";
+var cache;
+self.caches
+  .open(name)
+  .then(c => {
+    cache = c;
+    return self.caches.delete(name);
+  })
+  .then(_ => {
+    postMessage("LOADED");
+  });