chromium/third_party/blink/web_tests/external/wpt/shared-storage/resources/shared-storage-writable-iframe-in-fenced-inner.https.sub.html

<!doctype html>
<body>
  <script src=/resources/testharness.js></script>
  <script src=/common/utils.js></script>
  <script src=/fenced-frame/resources/utils.js></script>
  <script src=/shared-storage/resources/util.js></script>
  <script src=/shared-storage/resources/util.sub.js></script>
  <script>

async function init() {
  const sameOrigin = new URL("", location.href).origin;
  const [outerKey] = parseKeylist();
  let {expectedKey, expectedValue} = parseExpectedKeyAndValueData();

  await navigateSharedStorageIframe({
    hasSharedStorageWritableAttribute: true,
    rawWriteHeader: `set;key=${expectedKey};value=${expectedValue}`,
    isSameOrigin: true,
    expectSharedStorageWritableHeader: true,
  });

  await verifyKeyValueForOrigin(expectedKey, expectedValue, sameOrigin);
  await deleteKeyForOrigin(expectedKey, sameOrigin);
  await writeValueToServer(outerKey, "writable_iframe_in_fenced_inner_loaded");
}

init();
  </script>
</body>