diff --git a/testing/web-platform/meta/fenced-frame/report-event-sandboxed-iframe.https.html.ini b/testing/web-platform/meta/fenced-frame/report-event-sandboxed-iframe.https.html.ini
new file mode 100644
index 0000000000000..16bffb1ad09a3
--- /dev/null
+++ b/testing/web-platform/meta/fenced-frame/report-event-sandboxed-iframe.https.html.ini
@@ -0,0 +1,3 @@
+[report-event-sandboxed-iframe.https.html]
+  [window.fence.reportEvent in sandboxed (effectively cross-origin) iframe]
+    expected: FAIL