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Test Info: Warnings

<!DOCTYPE HTML>
<html class="reftest-wait">
<script>
var win = null;
function doIt() {
if (win === null) {
win = window.open();
}
var doc = win.document;
doc.open();
doc.write('<script>import("data:text/javascript,")</' + 'script>');
doc.close();
}
doIt();
setTimeout(() => {
doIt();
win.close();
document.documentElement.removeAttribute("class");
}, 100);
</script>
</html>