We're using the jssor module on a Drupal site – you can see the dev version here. The problem appears on screen sizes between (min-width: 768px) and (max-width: 1299px). The width of the slider's container is scaling fine, but the slides inside become smaller than full width of the slider. There seems to be a problem with the slides container (not the slider container!) and the calculated value that is being used for the transform: scale(value)
declaration on the element's style.
I have tried the $JssorSlider$.$ScaleWidth() method (recommended at Jssor Slider 100%), but that affects only the actual slider's container, which is not what's wrong here.