post-message-prerendering-completion-notification.html - mozsearch

mozilla-central/testing/web-platform/tests/speculation-rules/prerender/resources/post-message-prerendering-completion-notification.html

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<!doctype html>

<body>

<script>

window.parent.postMessage(`document.prerendering: ${document.prerendering}`,

                          '*');

</script>

</body>