1 files changed, 37 insertions, 0 deletions
diff --git a/testing/web-platform/tests/content-security-policy/frame-ancestors/nested-traversing-banned.sub.html b/testing/web-platform/tests/content-security-policy/frame-ancestors/nested-traversing-banned.sub.html
new file mode 100644
index 000000000..e58f0ba8d
--- /dev/null
+++ b/testing/web-platform/tests/content-security-policy/frame-ancestors/nested-traversing-banned.sub.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title>single-frame-self-allowed</title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <script src="../support/logTest.sub.js?logs=[]"></script>
+    <script src='../support/alertAssert.sub.js?alerts=["PASS"]'></script>
+    <!-- enforcing policy:
+connect-src 'self' 'none'; script-src 'self' 'unsafe-inline'; frame-src 'self';
+-->
+    <script>
+        function onMessage(event) {
+            if(event.data == "start test") {
+                startTest();
+            } else {
+                alert_assert(event.data);
+            }
+        }
+
+        window.addEventListener(
+            "message",
+            onMessage,
+            false);
+
+        function startTest() {
+            window.frames['frame1'].frames['deepframe'].postMessage("hello deep frame", "*");
+        }
+        function done() { alert_assert("PASS"); }
+        setTimeout(done(), 1);
+    </script>
+</head>
+<body>
+    <iframe src='http://{{host}}:{{ports[http][0]}}/content-security-policy/frame-ancestors/intermediate-reporting-frame-allows-self.sub.html?subframe=http://www1.{{host}}:{{ports[http][0]}}/content-security-policy/frame-ancestors/reporting-frame-allows-self.html' name="frame1"></iframe>
+    <div id="log"></div>
+</body>
+</html>