1 files changed, 29 insertions, 0 deletions
diff --git a/testing/web-platform/tests/content-security-policy/navigate-to/unsafe-allow-redirects/allowed-end-of-chain-because-of-same-origin.sub.html b/testing/web-platform/tests/content-security-policy/navigate-to/unsafe-allow-redirects/allowed-end-of-chain-because-of-same-origin.sub.html
new file mode 100644
index 0000000000..192477296b
--- /dev/null
+++ b/testing/web-platform/tests/content-security-policy/navigate-to/unsafe-allow-redirects/allowed-end-of-chain-because-of-same-origin.sub.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+
+<head>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+</head>
+
+<body>
+<script>
+  var t = async_test("Test that the child iframe navigation is allowed");
+  window.onmessage = t.step_func_done(function(e) {
+    assert_equals(e.data.result, 'success');
+  });
+
+  // the iframe will navigate to:
+  //    [www2]/..../redirect.py (which is not in the navigate-to source list) which will in turn navigate to
+  //    [www1]/..../post_message_to_frame_owner.html which is not exactly in
+  // the list but the check should be reduced to an origin check since there has been a redirect.
+  // Because of 'unsafe-allow-redirects' only the second one is checked since the first is a redirect
+
+  var i = document.createElement('iframe');
+  i.src = "../support/link_click_navigation.sub.html" +
+    "?csp=" + encodeURIComponent("navigate-to {{location[scheme]}}://{{domains[www1]}}:{{location[port]}}/some-path/ 'unsafe-allow-redirects'") +
+    "&target=" + encodeURIComponent("{{location[scheme]}}://{{domains[www2]}}:{{location[port]}}/common/redirect.py?location=" +
+                                     encodeURIComponent("{{location[scheme]}}://{{domains[www1]}}:{{location[port]}}/content-security-policy/navigate-to/support/post_message_to_frame_owner.html"));
+  document.body.appendChild(i);
+</script>
+
+</body>