Post this for two years later

$\tan \left ( \frac {\pi}{2017} \right ) \times \tan \left ( \frac {2\pi}{2017} \right ) \times \tan \left ( \frac {3\pi}{2017} \right ) \times \cdots \times \tan \left ( \frac {2016\pi}{2017} \right )$

What is the value of the product above?