gecko-dev/toolkit/content/tests/chrome/file_empty.xhtml

зеркало из https://github.com/mozilla/gecko-dev.git
<?xml version="1.0" encoding="UTF-8"?>
<html xmlns='http://www.w3.org/1999/xhtml'>
</html>
	`<?xml version="1.0" encoding="UTF-8"?>`
	`<html xmlns='http://www.w3.org/1999/xhtml'>`
	`</html>`