1 files changed, 56 insertions, 0 deletions
diff --git a/testing/web-platform/tests/speculation-rules/prerender/windowclient-navigate-to-same-origin-url-on-iframe.https.html b/testing/web-platform/tests/speculation-rules/prerender/windowclient-navigate-to-same-origin-url-on-iframe.https.html
new file mode 100644
index 0000000000..16989577df
--- /dev/null
+++ b/testing/web-platform/tests/speculation-rules/prerender/windowclient-navigate-to-same-origin-url-on-iframe.https.html
@@ -0,0 +1,56 @@
+<!DOCTYPE html>
+<title>WindowClient.navigate() to same-origin url in a prerendered iframe</title>
+<meta name="timeout" content="long">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/get-host-info.sub.js"></script>
+<script src="/common/utils.js"></script>
+<script src="/service-workers/service-worker/resources/test-helpers.sub.js"></script>
+<script src="/speculation-rules/prerender/resources/utils.js"></script>
+<body>
+<script>
+setup(() => assertSpeculationRulesIsSupported());
+
+const PAGE_URL = 'resources/windowclient-navigate-on-iframe.html';
+const WORKER_URL = 'resources/windowclient-navigate-worker.js';
+const SCOPE = 'resources/';
+const SAME_ORIGIN_DESTINATION =
+    get_host_info()['HTTPS_ORIGIN'] + base_path() + 'resources/empty.html';
+
+promise_test(async t => {
+  const uid = token();
+
+  const registration = await service_worker_unregister_and_register(
+      t, `${WORKER_URL}?uid=${uid}`, SCOPE);
+  t.add_cleanup(() => registration.unregister());
+  await wait_for_state(t, registration.installing, 'activated');
+
+  const bc = new PrerenderChannel('test-channel', uid);
+  t.add_cleanup(_ => bc.close());
+
+  const gotMessage = new Promise(resolve => {
+    bc.addEventListener('message', e => {
+      resolve(e.data);
+    }, {
+      once: true
+    });
+  });
+
+  // PAGE_URL starts a prerender of a page that makes an iframe, then asks the
+  // service worker to navigate the iframe to `navigationUrl` via
+  // `WindowClient.navigate(url)`.
+  window.open(
+      `${PAGE_URL}?navigationUrl=${SAME_ORIGIN_DESTINATION}&uid=${uid}`,
+      '_blank',
+      'noopener');
+
+  const navigationResult = await gotMessage;
+  assert_equals(navigationResult, 'navigate() succeeded',
+      'should succeed to finish navigation test');
+
+  // Send a close signal to PrerenderEventCollector on the prerendered page.
+  new PrerenderChannel('close', uid).postMessage('');
+}, 'WindowClient.navigate() to a same-origin URL on a prerendered iframe ' +
+   'should succeed');
+</script>
+</body>