[Violation] Added non-passive event listener to a scroll-blocking <some> event. Consider marking event handler as 'passive' to make the page more responsive.```
Because of that line :
https://github.com/Jexordexan/vue-slicksort/blob/b46a191bc6f23a1de1494a96543ffde47b5b200c/src/ContainerMixin.ts#L256
It seems like the problem was fixed in 1.2.0 :
https://github.com/Jexordexan/vue-slicksort/commit/12100f383192b202f5d721b89c5978074037388f
But the fixes doesn't exist on version 2.*