1 files changed, 19 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webmessaging/worker_postMessage_user_activation.tentative.html b/testing/web-platform/tests/webmessaging/worker_postMessage_user_activation.tentative.html
new file mode 100644
index 0000000000..203bb14985
--- /dev/null
+++ b/testing/web-platform/tests/webmessaging/worker_postMessage_user_activation.tentative.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<title>postMessage with user activtion to a worker</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<script>
+"use strict";
+
+promise_test(async t => {
+  var worker = new Worker("worker_postMessage_user_activation.js");
+  let workerReply = () => new Promise((resolve, reject) => {
+    worker.addEventListener('message', e => resolve(e.data), {once: true});
+  });
+  worker.postMessage(null, {includeUserActivation: true});
+  assert_equals(await workerReply(), true);
+  worker.postMessage(null, {includeUserActivation: false});
+  assert_equals(await workerReply(), false);
+}, "Post Message from a worker");
+</script>