Angular 9 - Refetech the same data on clicking back button

[Nischinth Jain]

I am beginner to Angular, I need help from you, I have stuck in one problem

Scenario: 

I am working on angular9, based on the requirement, I have used dropdown list, whenever selecting options from dropdown, automatically user table will be shown based on the selected option

Problem: 

After clicking the next button or going to the next page for more info, then again I need to go back to see the same selected option(clicking back button or browser back button)

How to see the selected options list..?

What is the method/procedure to gather the selected option..?

I have tried the router method, but it is not working

[bastien lemaire]

Hi, could you link to stackblitz with minimum reproduction code, please.

Very difficult to help without some code to look at.

Thanks

Bastien Lemaire

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[Nitin Gupta]

The event window.onpopstate gets triggered when history.back() is called from javascript but when across two different pages the window.onpopstate doesn't get invoked using the browser back button. On the back button call history.back() and set some form variable based on the selected option.