зеркало из https://github.com/mozilla/gecko-dev.git
6 строки
188 B
HTML
6 строки
188 B
HTML
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<!DOCTYPE html>
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<html style="visibility: hidden; background: url('delay-image-response.sjs?delay=200')">
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<body onload="document.documentElement.style.visibility = ''">
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</body>
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</html>
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