1 files changed, 20 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/browsers/origin/origin-keyed-agent-clusters/getter-special-cases/resources/sandboxed-same-origin-iframe-test.sub.mjs b/testing/web-platform/tests/html/browsers/origin/origin-keyed-agent-clusters/getter-special-cases/resources/sandboxed-same-origin-iframe-test.sub.mjs
new file mode 100644
index 0000000000..272f805870
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/origin/origin-keyed-agent-clusters/getter-special-cases/resources/sandboxed-same-origin-iframe-test.sub.mjs
@@ -0,0 +1,20 @@
+import {
+  navigateIframe,
+  testGetter
+} from "../../resources/helpers.mjs";
+
+export default ({ expected }) => {
+  // We do this manually instead of using insertIframe because we want to add a
+  // sandbox="" attribute and we don't want to set both document.domains.
+  promise_setup(() => {
+    const iframe = document.createElement("iframe");
+    iframe.sandbox = "allow-scripts allow-same-origin";
+    const navigatePromise = navigateIframe(iframe, "{{hosts[][]}}", "?1");
+    document.body.append(iframe);
+    return navigatePromise;
+  });
+
+  // Since the allow-same-origin token is set, this should behave like a normal
+  // iframe, and follow the embedder.
+  testGetter(0, expected);
+};