shared-storage-writable-fetch-request-for-data-url.tentative.https.sub.html

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This WPT test may be referenced by the following Test IDs:
- /shared-storage/shared-storage-writable-fetch-request-for-data-url.tentative.https.sub.html - WPT Dashboard Interop Dashboard

<!doctype html>

<body>

  <script src=/resources/testharness.js></script>

  <script src=/resources/testharnessreport.js></script>

  <script>

    'use strict';

    promise_test(async t => {

       const innerCode =

         `window.parent.postMessage({fetchStatus: "success"}, '*');`;

       const dataURL = 'data:text/javascript;base64,'

         + btoa(unescape(encodeURIComponent(innerCode)));

        await promise_rejects_js(t, TypeError,

                                 fetch(dataURL, {sharedStorageWritable: true}));

    }, 'shared storage fetch request disallowed for data URL');

  </script>

</body>