<!doctype html>
<title>document.write in an imported module</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="log"></div>
<script>
async_test(t => {
  const iframe = document.createElement("iframe");

  iframe.onerror = t.unreached_func("Error loading iframe");

  let onLoadWasCalled = false;
  iframe.onload = t.step_func(() => {
    onLoadWasCalled = true;
    assert_equals(iframe.contentDocument.body.textContent, "Initial body conten