1 files changed, 25 insertions, 0 deletions
diff --git a/testing/web-platform/tests/mixed-content/nested-iframes.window.js b/testing/web-platform/tests/mixed-content/nested-iframes.window.js
new file mode 100644
index 0000000000..daa0110471
--- /dev/null
+++ b/testing/web-platform/tests/mixed-content/nested-iframes.window.js
@@ -0,0 +1,25 @@
+// META: script=/common/get-host-info.sub.js
+
+const t1 = async_test("HTTP fetch");
+const t2 = async_test("HTTPS fetch");
+
+onmessage = function(e) {
+  const {protocol, success} = e.data;
+  if (protocol == "http:") {
+    t1.step(() => assert_false(success, "success"));
+    t1.done();
+  } else if (protocol == "https:") {
+    t2.step(() => assert_true(success, "success"));
+    t2.done();
+  } else {
+    [t1, t2].forEach(t => {
+      t.step(() => assert_unreached("Unknown message"));
+      t.done();
+    });
+  }
+};
+
+const httpsFrame = document.createElement("iframe");
+httpsFrame.src = get_host_info().HTTPS_ORIGIN + "/mixed-content/resources/middle-frame.html";
+
+document.body.appendChild(httpsFrame);