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chromium/third_party/blink/web_tests/fast/files/file-reader-abort-gc.html 

<!DOCTYPE html>
<script src="../../resources/js-test.js"></script>
<script>
var reader = new FileReader();
gc();
reader.readAsText(new Blob());
reader.abort();
</script>
<p>TEST PASS if it didn't crash.</p>