Get The Currently Selected Rangeselector From An Event Unrelated To The Chart

I have a chart that has a range selector on the upper left corner which allows the user to select from 1M, 3M, 6M, 1Y, 3Y, 5Y, All. This same chart also allows the user to input sp

Solution 1:

You need to catch afterSetExtremes then get values (min,max) and set cookie. When you load the page, check a cookie and call setExtremes