1 files changed, 28 insertions, 0 deletions
diff --git a/dom/webidl/FetchObserver.webidl b/dom/webidl/FetchObserver.webidl
new file mode 100644
index 0000000000..ccff51c789
--- /dev/null
+++ b/dom/webidl/FetchObserver.webidl
@@ -0,0 +1,28 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+[Exposed=Window]
+callback interface ObserverCallback {
+  undefined handleEvent(FetchObserver observer);
+};
+
+enum FetchState {
+  // Pending states
+  "requesting", "responding",
+  // Final states
+  "aborted", "errored", "complete"
+};
+
+[Exposed=(Window,Worker),
+ Pref="dom.fetchObserver.enabled"]
+interface FetchObserver : EventTarget {
+  readonly attribute FetchState state;
+
+  // Events
+  attribute EventHandler onstatechange;
+  attribute EventHandler onrequestprogress;
+  attribute EventHandler onresponseprogress;
+};