javascript - Detect back button in browser when the user go back to original page -

i have page hides query string parameter on load using pushstate method in javascript. example original url,

www.iprocess.com?acsn=23423432423432434;

what hides acsn parameter on load. looks

 www.iprocess.com

problem when click link inside page , goes page read www.iprocess.com without query string parameter data not load.

what want if user go page loads query string parameters @ same time hides it.

this code:

 window.history.pushstate('currentpage', 'title', window.location.pathname);

instead of using pushstate, use replacestate, way won't keep parameter state in history.

note easy make live example, here plnkr.
please open windowed mode ( in top right corner)

ANy