open the highstock.js file. get a line with the following code
if(!c.rendered&&(c.zoomText=e.text(i.rangeSelectorZoom,o,d.plotTop-10).css(g.labelStyle).add(),p=o+c.zoomText.getBBox().width+5,n(c.buttonOptions,function(a,b){h[b]=e.button(a.text,p,d.plotTop-25,function(){c.clickButton(b,a);c.isActive=!0}
and replace with this code
if(2==3&&!c.rendered&&(c.zoomText=e.text(i.rangeSelectorZoom,o,d.plotTop-10).css(g.labelStyle).add(),p=o+c.zoomText.getBBox().width+5,n(c.buttonOptions,function(a,b){h[b]=e.button(a.text,p,d.plotTop-25,function(){c.clickButton(b,a);c.isActive=!0}
it works for me. I hope you will work too.
source share