1 files changed, 17 insertions, 0 deletions
diff --git a/testing/web-platform/tests/xhr/event-loadstart.any.js b/testing/web-platform/tests/xhr/event-loadstart.any.js
new file mode 100644
index 0000000000..55af4c3163
--- /dev/null
+++ b/testing/web-platform/tests/xhr/event-loadstart.any.js
@@ -0,0 +1,17 @@
+// META: title=XMLHttpRequest: loadstart event
+
+var test = async_test();
+test.step(function () {
+  var client = new XMLHttpRequest();
+  client.onloadstart = test.step_func(function (e) {
+    assert_true(e instanceof ProgressEvent);
+    assert_equals(e.type, "loadstart");
+    assert_equals(client.readyState, 1);
+    test.done();
+  });
+  test.step_timeout(function () {
+    assert_unreached("onloadstart not called after 500 ms");
+  }, 500);
+  client.open("GET", "resources/well-formed.xml");
+  client.send(null);
+});