'iframe in style should be filtered'

def test_iframe_in_style(self):

    content = '<style><iframe    src="data:text/plain,foo"></iframe></style>'
    expected = '&lt;style&gt;&lt;iframe    src="data:text/plain,foo"&gt;&lt;/iframe&gt;&lt;/style&gt;'
    result = Document.objects.clean_content(content)
    eq_(normalize_html(expected), normalize_html(result))
