diff --git a/testing/web-platform/meta/webauthn/createcredential-clientdata.https.html.ini b/testing/web-platform/meta/webauthn/createcredential-clientdata.https.html.ini
new file mode 100644
index 0000000000000..6685cdb4e6c1e
--- /dev/null
+++ b/testing/web-platform/meta/webauthn/createcredential-clientdata.https.html.ini
@@ -0,0 +1,3 @@
+[createcredential-clientdata.https.html]
+  [navigator.credentials.create() has valid clientData]
+    expected: FAIL