Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 32 insertions, 0 deletions

diff --git a/testing/web-platform/tests/webmessaging/Channel_postMessage_transfer_xsite_incoming_messages.window.js b/testing/web-platform/tests/webmessaging/Channel_postMessage_transfer_xsite_incoming_messages.window.js
new file mode 100644
index 0000000000..23237ae155
--- /dev/null
+++ b/testing/web-platform/tests/webmessaging/Channel_postMessage_transfer_xsite_incoming_messages.window.js
@@ -0,0 +1,32 @@
+// META: script=/common/get-host-info.sub.js
+
+async_test(function(t) {
+  var channel1 = new MessageChannel();
+  var host = get_host_info();
+  let iframe = document.createElement('iframe');
+  iframe.src = host.HTTP_NOTSAMESITE_ORIGIN + "/webmessaging/support/ChildWindowPostMessage.htm";
+  document.body.appendChild(iframe);
+  var TARGET = document.querySelector("iframe").contentWindow;
+  iframe.onload = t.step_func(function() {
+    // Enable the port.
+    channel1.port1.onmessage = t.step_func(function (evt) {
+      assert_equals(Number(evt.data), 0);
+
+      // Send a message, expecting it to be received in the iframe.
+      channel1.port2.postMessage(1)
+
+      // Transfer the port.
+      TARGET.postMessage("ports", "*", [channel1.port1]);
+    });
+
+    // Send a message, expecting it to be received here.
+    channel1.port2.postMessage(0)
+
+    channel1.port2.onmessage = t.step_func(function (evt) {
+        assert_equals(Number(evt.data), 1);
+        t.done();
+      });
+  });
+}, `Tasks enqueued on the port-message-queue of an enabled port,
+  are transferred along with the port, when the transfer happens in the same task
+  during which postMessage is called`);