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Test Info:

<!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>
async_test(function(t) {
// The SAB constructor throws if the page is not cross-origin-isolated.
"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 =;
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);