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Test Info:

<!doctype html>
<title>onvisibilitychange attribute is a proper event handler</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="log"></div>
<script>
var ast = new async_test("onvisibilitychange attribute is a proper event handler");
function startTest() {
var iframe1 = document.getElementById("frame1");
iframe1.contentWindow.document.onvisibilitychange = ast.step_func(function() {
ast.done();
});
frame1.parentNode.removeChild(frame1);
}
</script>
<iframe id="frame1" src='resources/iframe.html'></iframe>