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