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-rw-r--r--testing/web-platform/tests/portals/portals-nested.html17
1 files changed, 17 insertions, 0 deletions
diff --git a/testing/web-platform/tests/portals/portals-nested.html b/testing/web-platform/tests/portals/portals-nested.html
new file mode 100644
index 0000000000..b4b396ff8d
--- /dev/null
+++ b/testing/web-platform/tests/portals/portals-nested.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<body>
+ <script>
+ promise_test(() => {
+ assert_implements("HTMLPortalElement" in self);
+ var portal = document.createElement("portal");
+ portal.src = "resources/portals-nested-portal.html";
+ document.body.appendChild(portal);
+ var waitForMessage = new Promise((resolve, reject) => {
+ portal.onmessage = resolve;
+ });
+ return waitForMessage;
+ }, "nested portals shouldn't crash");
+ </script>
+</body>