CSS selector :nth-child not working properly

[Janther]

:nth-child(even) works but :nth-child(3) doesn't (it returns [] and trying the same selector with jQuery works).
It used to work in previous version I had no problem.

[gcirne]

I'm having the same problem (version 1.5.9). My current workaround is to use xpath selectors instead.

[flavorjones]

Hello!

Thanks for asking this question! However, without more information,
Team Nokogiri cannot reproduce your issue, and so we cannot offer much
help.

Please provide us with:

• The output of nokogiri -v, which will provide details about your
  platform and versions of ruby, libxml2 and nokogiri.

For more information about requesting help or reporting bugs, please
take a look at http://bit.ly/nokohelp

Worth noting is that libxml 2.9.0 has a known bug in xpath query evaluation -- see #829 for background.

Thank you so much!

[timdiggins]

I think this is likely to be the same problem as #829, so suggest this is closed as a duplicate