blablabla : go to jquery.fastclick.min.js and change a.addEventListener("touchstart",this.onTouchStart, !1) to be like this :
a.addEventListener("touchstart",this.onTouchStart, {passive: True})
do not forget to to clear browser cash to reload the new version of file
the same thing applies to combobox and other components
viewtopic.php?f=43&t=1796&start=10best regards everybody