js-self-profiling/with-document-policy/dedicated-worker-nested-blob.https.html

<!DOCTYPE html>
<html>
<head>
  <script src="/resources/testharness.js"></script>
  <script src="/resources/testharnessreport.js"></script>
</head>
<body>
  <script>
    // A nested blob: worker (a blob: worker created by another blob: worker)
    // should inherit Document-Policy transitively from the creator document.
    promise_test(async t => {
      const innerScript = `
        try {
          new Profiler({ sampleInterval: 10, maxBufferSize: Number.MAX_SAFE_INTEGER });
          self.postMessage({ success: true, message: 'Profiler created in inner worker' });
        } catch (e) {
          self.postMessage({ success: false, error: e.name, message: e.message });
        }
      `;
      // The outer worker creates the inner blob: worker and relays its result.
      const outerScript = `
        const innerSource = ${JSON.stringify(innerScript)};
        const innerBlob = new Blob([innerSource], { type: 'text/javascript' });
        const innerUrl = URL.createObjectURL(innerBlob);
        const inner = new Worker(innerUrl);
        inner.onmessage = e => {
          self.postMessage(e.data);
          inner.terminate();
          URL.revokeObjectURL(innerUrl);
        };
        inner.onerror = e => {
          self.postMessage({ success: false, error: 'InnerWorkerError', message: e.message });
        };
      `;
      const outerBlob = new Blob([outerScript], { type: 'text/javascript' });
      const outerUrl = URL.createObjectURL(outerBlob);
      const outer = new Worker(outerUrl);
      const result = await new Promise((resolve, reject) => {
        outer.onmessage = e => resolve(e.data);
        outer.onerror = e => reject(new Error(e.message));
      });
      assert_true(result.success,
                  'profiling should succeed in nested blob: dedicated worker with transitively inherited document policy');
      outer.terminate();
      URL.revokeObjectURL(outerUrl);
    }, 'nested blob: dedicated worker should inherit js-profiling policy transitively from creator document');
  </script>
</body>
</html>