• Mistake in the link

Question related to mission Loading Cargo

 

In the Show hint 3, there are mistake in the link "Partition problems". When I click, nothing happens and the link disappears.

Before clicking: <a href="http://en.wikipedia.org/wiki/Partition_problem">Partition problems</a>

After cliking: <a href="http://en.wikipedia.org/wiki/Partition_problem" style="display: none;">Partition problems</a>