[Line 315 of slider.js](https://github.com/TimeMagazine/d3slider/blob/master/slider.js#L315) sets the value one short of the domain's extent, which means the svg thumb [isn't translated to it's full extent](https://github.com/TimeMagazine/d3slider/blob/master/slider.js#L322). After commenting out line 315, the slider reached it's full extent properly, both with and without looping.
Line 315 of slider.js sets the value one short of the domain's extent, which means the svg thumb isn't translated to it's full extent.
After commenting out line 315, the slider reached it's full extent properly, both with and without looping.