testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/004-1.html


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<!doctype html>
<script>
addEventListener("pagehide", function() {parent.events.push("pagehide"); setTimeout(function() {parent.events.push("timeout")}, 0)}, false);
addEventListener("unload", function() {parent.events.push("unload")}, false);
</script>