1 files changed, 16 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/browsers/sandboxing/sandbox-navigation-timing-iframe.tentative.html b/testing/web-platform/tests/html/browsers/sandboxing/sandbox-navigation-timing-iframe.tentative.html
new file mode 100644
index 0000000000..43726e7720
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/sandboxing/sandbox-navigation-timing-iframe.tentative.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<script>
+  let result;
+  try {
+    parent.document.getElementsByClassName('script');
+    result = 'iframe not sandboxed'
+  } catch (e) {
+    result = 'iframe sandboxed(' + e.message + ')';
+  }
+  window.onmessage = m => {
+    window.parent.postMessage({
+      result: result
+    }, '*');
+  };
+</script>
+\ No newline at end of file