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<!DOCTYPE html>
<html>
<body>
<iframe id="frame"></iframe>
<script src="../../resources/js-test.js"></script>
<script>
if (!window.internals) {
debug("This test only runs on \"content_shell --run-layout-test\", as it requires existence of window.internals.");
} else {
testRunner.waitUntilDone();
window.jsTestIsAsync = true;
var documentsBefore;
var documentsAfter;
asyncGC(function() {
documentsBefore = window.internals.numberOfLiveDocuments();
var frame = document.getElementById('frame');
frame.contentDocument.body.innerHTML = '<form></form>';
document.body.removeChild(frame);
frame = null;
asyncGC(function() {
documentsAfter = window.internals.numberOfLiveDocuments();
// -1 is from removing frame itself.
shouldBe('documentsBefore - 1', 'documentsAfter');
finishJSTest();
});
});
}
</script>
</body>
</html>
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