1 files changed, 28 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/browsers/origin/origin-keyed-agent-clusters/getter-special-cases/resources/helpers.mjs b/testing/web-platform/tests/html/browsers/origin/origin-keyed-agent-clusters/getter-special-cases/resources/helpers.mjs
new file mode 100644
index 0000000000..4610ffcad0
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/origin/origin-keyed-agent-clusters/getter-special-cases/resources/helpers.mjs
@@ -0,0 +1,28 @@
+import { waitForIframe } from "../../resources/helpers.mjs";
+
+/**
+ * Inserts an iframe, not specialized for origin-keyed agent cluster testing,
+ * pointing to a custom URL. This is just a wrapper to remove some boilerplate.
+ * @param {string} src - The src="" value for the iframe
+ */
+export async function insertCustomIframe(src) {
+  const iframe = document.createElement("iframe");
+  iframe.src = src;
+
+  const waitPromise = waitForIframe(iframe);
+  document.body.append(iframe);
+  await waitPromise;
+
+  return iframe;
+}
+
+/**
+ * This is the part of send-oac-header.py that allows us to reuse testGetter.
+ */
+export const testSupportScript = `
+  <script>
+  window.onmessage = () => {
+    parent.postMessage(self.originAgentCluster, "*");
+  };
+  </script>
+`;