1 files changed, 25 insertions, 0 deletions
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