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<!DOCTYPE html>
<!--
Tests for cross-origin iframes due to sandbox flags is deferred properly.
This file cannot be upstreamed to WPT until:
* The specification describes the loading of cross-origin iframes. The test
expects that they are not loaded during prerendering.
-->
<title>Load a prerendered iframe with sandbox attributes</title>
<meta name="timeout" content="long">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/get-host-info.sub.js"></script>
<script src="/common/utils.js"></script>
<script src="../resources/utils.js"></script>
<script src="resources/utils.js"></script>
<body>
<script>
setup(() => assertSpeculationRulesIsSupported());
promise_test(async t => {
const uid = token();
const bc = new PrerenderChannel('test-channel', uid);
const messageQueue = new BroadcastMessageQueue(bc);
t.add_cleanup(_ => bc.close());
const url = `resources/sandbox-iframe.html?uid=${uid}`;
window.open(url, '_blank', 'noopener');
const result = await messageQueue.nextMessage();
const expected = [
{
event: 'started waiting iframe loaded',
prerendering: true
},
{
event: 'prerendering change',
prerendering: false
},
{
event: 'finished waiting iframe loaded',
prerendering: false
},
];
assert_equals(result.length, expected.length);
for (let i = 0; i < result.length; i++) {
assert_equals(result[i].event, expected[i].event, `event[${i}]`);
assert_equals(result[i].prerendering, expected[i].prerendering,
`prerendering[${i}]`);
}
// Send a close signal to PrerenderEventCollector on the prerendered page.
new PrerenderChannel('close', uid).postMessage('');
}, `same-origin sandbox iframes should not load until activation`);
</script>
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