1 files changed, 11 insertions, 0 deletions
diff --git a/testing/web-platform/mozilla/tests/dom/throttling/throttling-3.window.js b/testing/web-platform/mozilla/tests/dom/throttling/throttling-3.window.js
new file mode 100644
index 0000000000..d1c38bcc12
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/dom/throttling/throttling-3.window.js
@@ -0,0 +1,11 @@
+// META: script=resources/throttling.js
+
+setup(() => waitForLoad()
+  .then(() => "setup done"));
+
+promise_test(t => inFrame(t)
+  .then(win => busy(100)
+    .then(() => win.getThrottlingRate(100)))
+  .then(rate => {
+    assert_less_than(rate, 10, "Timeout was throttled");
+  }), "Don't throttle iframe when all budget in parent has been used");