Retain Dynamically Created DropDown List's Selected Value On Event Window.history.back()- JavaScript

Can use the below question as a reference to explain the context: Populate one dropdown based on selection in another On my page; after selecting the proper values from the dropdow

Solution 1:

Without the context of your specific code, it's hard to answer well, but you should look into using the window.sessionStorage or window.localStorage to temporarily store data for persistence between pages in javascript.