File: element-ready-check-containing-iframe-manual.html

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<!DOCTYPE html>
<title>Element ready check for containing iframe</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../trusted-click.js"></script>
<div id="log"></div>
<iframe allowfullscreen></iframe>
<iframe allowfullscreen></iframe>
<script>
// wait for load event to avoid https://bugzil.la/1493878
window.onload = function() {
  async_test(function(t) {
      var iframes = document.getElementsByTagName("iframe");
      trusted_request(t, iframes[0].contentDocument.body, iframes[0].contentDocument.body);
      iframes[0].contentDocument.onfullscreenchange = t.step_func(function() {
          assert_equals(document.fullscreenElement, iframes[0]);
          trusted_request(t, iframes[1].contentDocument.body, iframes[0].contentDocument.body);
          iframes[1].contentDocument.onfullscreenerror = t.unreached_func("fullscreenerror event");
          iframes[1].contentDocument.onfullscreenchange = t.step_func_done();
      });
  });
};
</script>