ResizeObserver not being unmounted alongside rangeslider component

[DolpZanso]

Hello. I found an issue where the resizeobserver that is being used with the rangeslider is still active even though the component has been unmounted. I observed this because my next page holds a react-id-swiper component, which generates a 'transitionend' event whenever it swipes. The resizeobserver has a transitionend event listener which triggers, and causes an error, because the resizeobserver was not properly disconnected on unmount of the rangeslider. Can you please help in fixing this? Many thanks

[bongtavas]

This happens because the resizeObserver is not disconnected in unmount.

react-rangeslider/src/Rangeslider.js

Line 71 in 28b957e

resizeObserver.observe(this.slider)

We might need to add

componentWillUnmount () {
  resizeObserver.unobserve(this.slider);
}