shared-storage/shared-storage-writable-clear.tentative.https.sub.html

<!doctype html>
<body>
  <script src=/resources/testharness.js></script>
  <script src=/resources/testharnessreport.js></script>
  <script src=/common/utils.js></script>
  <script src=/common/get-host-info.sub.js></script>
  <script src=/fenced-frame/resources/utils.js></script>
  <script src=/shared-storage/resources/util.js></script>
  <script>
    'use strict';

   const sameOriginClearUrl =
      `/shared-storage/resources/shared-storage-write.py?write=clear`;
    const sameOrigin = generateURL(sameOriginClearUrl, []).origin;
    const crossOrigin = 'https://{{domains[www]}}:{{ports[https][0]}}';
    const crossOriginClearUrl = crossOrigin + sameOriginClearUrl;

    promise_test(async t => {
      await sharedStorage.set("hello", "there");
      await verifyKeyValueForOrigin('hello', 'there', sameOrigin);

      let response = await fetch(sameOriginClearUrl,
                                 {sharedStorageWritable: true});
      let sharedStorageWritableHeader = await response.text();
      assert_equals(sharedStorageWritableHeader, "?1");

      // JS does not see the `Shared-Storage-Write` response header.
      assert_false(!!response.headers.get('Shared-Storage-Write'));

      await verifyKeyNotFoundForOrigin('hello', sameOrigin);
    }, 'Clearing from shared storage via the \'Shared-Storage-Write\' header '
       + 'for a same-origin shared storage fetch request');

    promise_test(async t => {
      await setKeyValueForOrigin('hello', 'there', crossOrigin);
      await verifyKeyValueForOrigin('hello', 'there', crossOrigin);

      let response = await fetch(crossOriginClearUrl,
                                 {sharedStorageWritable: true});
      let sharedStorageWritableHeader = await response.text();
      assert_equals(sharedStorageWritableHeader, "?1");

      // JS does not see the `Shared-Storage-Write` response header.
      assert_false(!!response.headers.get('Shared-Storage-Write'));

      await verifyKeyNotFoundForOrigin('hello', crossOrigin);
    }, 'Clearing from shared storage via the \'Shared-Storage-Write\' header '
       + 'for a cross-origin shared storage fetch request');
  </script>
</body>