19 lines
483 B
HTML
19 lines
483 B
HTML
<!doctype html>
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<html>
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<head><title>Document</title></head>
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<body>
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<h1>Document</h1>
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<script>
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window.addEventListener("load", function() {
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window.addEventListener("visibilitychange", event => {
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opener.postMessage({
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target: event.target.nodeName,
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state: document.visibilityState,
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bubbles: event.bubbles
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}, "*");
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});
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opener.postMessage("close", "*");
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});
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</script>
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</body>
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</html>
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