add tests for issue 16, cannot reproduce at the moment
add tests for issue 16, cannot reproduce at the moment

morephp/gocrawl,morephp/gocrawl,PuerkitoBio/gocrawl,vizewang/gocrawl,mantyr/gocrawl,abhishekgahlot/gocrawl,vizewang/gocrawl,fjordan/gocrawl,mantyr/gocrawl,fjordan/gocrawl,abhishekgahlot/gocrawl