IndexedDB/serialize-sharedarraybuffer-throws.https.html

<!DOCTYPE html>
<title>IndexedDB: Attempting to serialize a SharedArrayBuffer should throw</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/support.js"></script>
<script>
  async_test(function(t) {

    // The SAB constructor throws if the page is not cross-origin-isolated.
    assert_true(self.crossOriginIsolated,
                "The page is served with COOP and COEP, it should be cross-origin-isolated.");

    let open_rq = createdb(t);
    open_rq.onupgradeneeded = function(e) {
        let db = e.target.result;
        let objStore = db.createObjectStore("test");

        let sab = new SharedArrayBuffer(256);

        let rq;
        assert_throws_dom("DataCloneError", () => {
            rq = objStore.put({sab: sab}, 'key');
        });
        assert_equals(rq, undefined);
        t.done();
    };
  });
</script>