15 lines
355 B
HTML
15 lines
355 B
HTML
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<!DOCTYPE html>
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<script>
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var messages = [];
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window.addEventListener('message', function(e) {
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var message = JSON.stringify(e.data);
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messages.push(message);
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var pre = document.createElement('pre');
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pre.style.margin = 0;
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pre.style.padding = 0;
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pre.textContent = message;
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document.body.appendChild(pre);
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}, true);
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</script>
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