1 files changed, 23 insertions, 0 deletions
diff --git a/testing/web-platform/tests/credential-management/support/fedcm-iframe.html b/testing/web-platform/tests/credential-management/support/fedcm-iframe.html
new file mode 100644
index 0000000000..c57f54e1da
--- /dev/null
+++ b/testing/web-platform/tests/credential-management/support/fedcm-iframe.html
@@ -0,0 +1,23 @@
+<!doctype html>
+<script type="module">
+import {default_request_options} from './fedcm-helper.sub.js';
+
+// Loading fedcm-iframe.html in the test will make a FedCM call on load, and
+// trigger a postMessage upon completion.
+//
+// message {
+//   string result: "Pass" | "Fail"
+//   string token: token.token
+//   string errorType: error.name
+// }
+
+window.onload = async () => {
+  try {
+    const cred = await navigator.credentials.get(default_request_options());
+    window.top.postMessage({result: "Pass", token: cred.token}, '*');
+  } catch (error) {
+    window.top.postMessage({result: "Fail", errorType: error.name}, '*');
+  }
+};
+
+</script>