How full page screen comparison is done

[Sivaramvt]

Am new to NightmareJs and Niffy. Impressed with easiness to use Niffy.

When i go with the default options, niffy compares the screen snap of the visible viewport. My requirement is to compare the screen snap of the whole page. Is it possible to do it with Niffy?
Please help.

[AshCoolman]

Did you ever get this to work? I tried for over an hour and could not get it working

[alanpilloud]

There is no way to achieve this at the moment. I'm currently trying to add such a feature and it's almost done, see #21