13 lines
193 B
HTML
13 lines
193 B
HTML
<!DOCTYPE html>
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<html>
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<head>
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<script>
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window.onmessage = event => {
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document.body.textContent = `${event.origin}|${event.data}`;
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};
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</script>
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</head>
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<body></body>
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</html>
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