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<!DOCTYPE html>
<script src="/common/utils.js"></script>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/get-host-info.sub.js"></script>
<script src="/speculation-rules/prerender/resources/utils.js"></script>
<script src="/speculation-rules/prerender/resources/deferred-promise-utils.js"></script>
<body>
<script>
async function main() {
const crossOriginUrl =
new URL('cross-origin-iframe-src.html',
get_host_info()['HTTPS_REMOTE_ORIGIN'] +
window.location.pathname);
// Start loading a cross-origin iframe. The iframe messages us with the
// value of its document.prerendering, which should be false since load
// is delayed until after activation.
const crossOriginIframe = document.createElement('iframe');
const gotMessage = new Promise((resolve, reject) => {
window.addEventListener('message', (e) => {
if (e.data == 'document.prerendering: false')
resolve();
else
reject('bad message: ' + e.data);
});
});
crossOriginIframe.src = crossOriginUrl.href;
document.body.appendChild(crossOriginIframe);
// To give the test a chance to fail by giving enough time if it loads the
// cross-origin iframe instead of deferring, wait for a same-origin iframe to
// load before proceeding with the test.
await createFrame('empty.html');
// Start the event collector to trigger activation.
const prerenderEventCollector = new PrerenderEventCollector();
prerenderEventCollector.start(gotMessage,
'iframe loaded');
}
// The main test page (cross-origin-iframe.https.html) loads the initiator
// page, then the initiator page will prerender itself with the
// `prerendering` parameter.
const params = new URLSearchParams(location.search);
if (!params.has('prerendering')) {
const rule_extras = {'target_hint': getTargetHint()};
loadInitiatorPage(rule_extras);
} else {
main();
}
</script>
</body>
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