File: ready-state-destroyed-execution-context.html

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<!DOCTYPE html>
<meta charset=utf-8>
<title>readyState is valid when the execution context is destroyed</title>
<link rel="help" href="https://w3c.github.io/IndexedDB/#dom-idbrequest-readystate">
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src=resources/support.js></script>
<script>

function load_iframe() {
    return new Promise(resolve => {
        const iframe = document.createElement('iframe');
        iframe.onload = () => { resolve(iframe); };
        document.documentElement.appendChild(iframe);
    });
}

promise_test(async t => {
    const iframe = await load_iframe();
    const dbname = location + '-' + t.name;
    const openRequest = iframe.contentWindow.indexedDB.open(dbname);
    assert_equals(openRequest.readyState, 'pending');
    iframe.remove();
    await new Promise(resolve => {
      openRequest.onerror = resolve;
      openRequest.onsuccess = resolve;
    });
    assert_equals(openRequest.readyState, 'done');
}, 'readyState accessor is valid after execution context is destroyed');

</script>