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

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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 ("launch preview in separate window" icon in top right corner)


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