1 files changed, 14 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webmessaging/Channel_postMessage_DataCloneErr.any.js b/testing/web-platform/tests/webmessaging/Channel_postMessage_DataCloneErr.any.js
new file mode 100644
index 0000000000..048820fa6b
--- /dev/null
+++ b/testing/web-platform/tests/webmessaging/Channel_postMessage_DataCloneErr.any.js
@@ -0,0 +1,14 @@
+// META: title=postMessage() with a host object raises DataCloneError
+
+    var description = "Throw a DataCloneError when a host object (e.g. a DOM node) is used with postMessage.";
+
+    test(function()
+    {
+        var channel = new MessageChannel();
+        channel.port1.start();
+
+        assert_throws_dom("DATA_CLONE_ERR", function()
+        {
+            channel.port1.postMessage(globalThis);
+        });
+    }, description);