How to handle back button when browser is not firing popstate event immediately

Question

This question may sound weird, because most of the time popstate is fired synchronously as users press the back button.

However, W3C spec states that a UA (browser) is a

Answer 1

Can you try calling popstate during unload of the previous page. For eg, if you're in page 1 and want to move to page 2, instead of calling pop state during the load/ready of page 2, why don't you call pop state in the unload event of the page 1?

Not sure whether it satisfies your scenario. But I wasn't able to try it in your bin.