<!doctype html>
<meta charset=utf-8>
<title>Set the src attribute to about:blank and check referrer</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id=log></div>
<iframe></iframe>
<script>
  onload = function() {
    var fr = document.querySelector("iframe")
    fr.src = "about:blank"
    fr.onload = function() {
      assert_equals(fr.contentDocument.referrer, document.URL)
      done()
    }
  }
</script>