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chromium/third_party/blink/web_tests/external/wpt/html/browsers/browsing-the-web/history-traversal/api-availability.html 

<!doctype html>
<title>API availability following history traversal</title>
<meta charset=utf-8>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<p>Test requires popup blocker disabled</p>
<div id=log></div>
<script>
var t = async_test();
var hasNavigated = false;
var child;
t.step(function() {
  child = window.open("resources/api-availability-1.html");
  t.add_cleanup(function() {
    child.close();
  });
});
navigate = t.step_func(function() {
  hasNavigated = true;
  child.location = child.location.href.replace("api-availability-1.html", "api-availability-2.html");
});
</script>