<!DOCTYPE html>
<html>
<body>
<script type="text/javascript">
console.log("___________")
</script>
<script type="text/javascript">
let sitemapurl = "https://logcrow.appspot.com/sitemap.xml";
let xhr = new XMLHttpRequest();

xhr.open('GET', sitemapurl, false);

try {
  xhr.send();
  if (xhr.status != 200) {
    console.log(xhr.response)
  } else {
    console.log(xhr.response);
  }
} catch(err) { // onerror の代わり
  console.log("Request failed");
}
</script>
</body>
</html>