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<!doctype html>
<title>document.write \r\n</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<div id="log"></div>

<script>
var t = async_test();

t.step(function() {
  document.write("\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\nA");
})

onload = function() {
  t.step(function() {
    const lastNode = document.getElementById('after');
    assert_equals(lastNode.previousSibling.data, "\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nAB");
  });
  t.done();
};
</script>B<div id=after></div>