shared-storage/shared-storage-writable-permissions-policy-self.tentative.https.sub.html

<!doctype html>
<body>
  <script src=/resources/testharness.js></script>
  <script src=/resources/testharnessreport.js></script>
  <script src=/permissions-policy/resources/permissions-policy.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>
    'use strict';
    const header = 'permissions policy header shared-storage=(self)';

    const rawSetHeader = 'set;key=hello;value=world';
    const setHeader = encodeURIComponent(rawSetHeader);
    const sameOriginUrl =
          `/shared-storage/resources/shared-storage-write.py?write=${setHeader}`;
    const sameOrigin = generateURL(sameOriginUrl, []).origin;
    const crossOrigin = 'https://{{domains[www]}}:{{ports[https][0]}}';
    const crossOriginUrl = crossOrigin + sameOriginUrl;

    promise_test(async t => {
      let response = await fetch(sameOriginUrl,
                                 {sharedStorageWritable: true});
      let sharedStorageWritableHeader = await response.text();
      assert_equals(sharedStorageWritableHeader, "?1");

      await verifyKeyValueForOrigin('hello', 'world', sameOrigin);
      await deleteKeyForOrigin('hello', sameOrigin);
    }, header + ' allows the \'Sec-Shared-Storage-Writable\' header to be sent '
              + 'for the same-origin shared storage fetch request.');

    promise_test(async t => {
      let response = await fetch(crossOriginUrl,
                                 {sharedStorageWritable: true});
      let sharedStorageWritableHeader = await response.text();
      assert_equals(sharedStorageWritableHeader,
                    "NO_SHARED_STORAGE_WRITABLE_HEADER");
    }, header + ' disallows the \'Sec-Shared-Storage-Writable\' header to be '
              + 'sent for the cross-origin shared storage fetch request.');

    promise_test(async t => {
      let response = await fetch('/common/redirect.py?location='
                                 + sameOriginUrl,
                                 {sharedStorageWritable: true});
      let sharedStorageWritableHeader = await response.text();
      assert_equals(sharedStorageWritableHeader, "?1");

      await verifyKeyValueForOrigin('hello', 'world', sameOrigin);
      await deleteKeyForOrigin('hello', sameOrigin);
    }, header + ' allows the \'Sec-Shared-Storage-Writable\' header to be '
              + 'sent for the redirect of a shared storage fetch request, '
              + 'where the redirect has a same-origin URL.');

    promise_test(async t => {
      let response = await fetch('/common/redirect.py?location='
                                 + crossOriginUrl,
                                 {sharedStorageWritable: true});
      let sharedStorageWritableHeader = await response.text();
      assert_equals(sharedStorageWritableHeader,
                    "NO_SHARED_STORAGE_WRITABLE_HEADER");
    }, header + ' disallows the \'Sec-Shared-Storage-Writable\' header to be '
              + 'sent for the redirect of a shared storage fetch request, '
              + 'where the redirect has a cross-origin URL.');
  </script>
</body>