How to maintain back button on ajax call

Question

Hi,

 

I need to maintain previous url on back button click but I am not able to do that. Following is the scenario:

 

Step 1: Homepage

Step 2: Clicked on Support page (http://dev.bca.com/en/support) 

Step 3: From global search, I searched for Technology and it redirected me to following url with parameters:

 http://dev.bca.com/search?query=Technology&index=0&size=25&languages=English#all 

 

Now when I click on browser back, it should go back to step 2 page. But it's not working.

 

Please suggest.