1 files changed, 26 insertions, 0 deletions
diff --git a/testing/web-platform/tests/wasm/serialization/module/window-domain-success.sub.html b/testing/web-platform/tests/wasm/serialization/module/window-domain-success.sub.html
new file mode 100644
index 0000000000..07360d8264
--- /dev/null
+++ b/testing/web-platform/tests/wasm/serialization/module/window-domain-success.sub.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<!-- Based on similar tests in html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/ -->
+<meta charset="utf-8">
+<title>Structured cloning of WebAssembly.Module into same-origin-domain windows</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./resources/test-incrementer.js"></script>
+
+<div id="log"></div>
+
+<script>
+"use strict";
+document.domain = "{{host}}";
+
+promise_test(t => {
+  return new Promise(resolve => {
+    const iframe = document.createElement("iframe");
+    iframe.onload = t.step_func(() => {
+      resolve(testSharingViaIncrementerScript(t, window, "window", iframe.contentWindow, "iframe", "*"));
+    });
+    iframe.src = "//{{domains[www1]}}:{{location[port]}}/wasm/serialization/module/resources/incrementer-iframe-domain.sub.html";
+    document.body.appendChild(iframe);
+  });
+}, "postMessaging to a same-origin-domain (but not same-origin) iframe allows them to instantiate");
+
+</script>