4 files changed, 59 insertions, 0 deletions
diff --git a/testing/web-platform/tests/client-hints/sandbox/resources/embedded-popup-expect-hints.html b/testing/web-platform/tests/client-hints/sandbox/resources/embedded-popup-expect-hints.html
new file mode 100644
index 0000000000..6cd5f0a29e
--- /dev/null
+++ b/testing/web-platform/tests/client-hints/sandbox/resources/embedded-popup-expect-hints.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="util.js"></script>
+<script>
+sandbox_popup_listener("/client-hints/resources/expect-client-hints-headers.html");
+</script>
+</body>
+</html>
+\ No newline at end of file
diff --git a/testing/web-platform/tests/client-hints/sandbox/resources/embedded-popup-expect-no-hints.html b/testing/web-platform/tests/client-hints/sandbox/resources/embedded-popup-expect-no-hints.html
new file mode 100644
index 0000000000..46dbb7f236
--- /dev/null
+++ b/testing/web-platform/tests/client-hints/sandbox/resources/embedded-popup-expect-no-hints.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="util.js"></script>
+<script>
+sandbox_popup_listener("/client-hints/resources/expect-no-client-hints-headers.html");
+</script>
+</body>
+</html>
+\ No newline at end of file
diff --git a/testing/web-platform/tests/client-hints/sandbox/resources/iframe-with-embedded-popup-expect-no-hints.html b/testing/web-platform/tests/client-hints/sandbox/resources/iframe-with-embedded-popup-expect-no-hints.html
new file mode 100644
index 0000000000..96d2886f0e
--- /dev/null
+++ b/testing/web-platform/tests/client-hints/sandbox/resources/iframe-with-embedded-popup-expect-no-hints.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+<body>
+<script>
+  window.addEventListener('message', e => {
+    window.parent.postMessage(e.data, '*');
+  });
+
+</script>
+<iframe src="embedded-popup-expect-no-hints.html"></iframe>
+</body>
+</html>
diff --git a/testing/web-platform/tests/client-hints/sandbox/resources/util.js b/testing/web-platform/tests/client-hints/sandbox/resources/util.js
new file mode 100644
index 0000000000..8c25e5ad8b
--- /dev/null
+++ b/testing/web-platform/tests/client-hints/sandbox/resources/util.js
@@ -0,0 +1,25 @@
+function sandbox_iframe_test(sandbox, src, title) {
+  return promise_test(async t => {
+    const iframe = document.createElement("iframe");
+    if (sandbox !== "")
+      iframe.sandbox = sandbox;
+    iframe.src = src;
+
+    let msg = await new Promise(resolve => {
+      window.addEventListener('message', resolve);
+      document.body.appendChild(iframe);
+    });
+
+    assert_equals(msg.data, "PASS", "message from opened frame");
+    await fetch("/client-hints/accept-ch-stickiness/resources/clear-site-data.html");
+  }, title);
+}
+
+function sandbox_popup_listener(src) {
+  window.addEventListener('message', e => {
+    window.parent.postMessage(e.data, '*');
+  });
+
+  let popup_window = window.open("/resources/blank.html");
+  popup_window.location.href = src;
+}
+\ No newline at end of file