Case: Say you are using pjax and your site’s search page has a form with 3 inputs (A, B and C), when user only changes value of filter C, and submit the form, your site’s URL will transform into something like: yoursite.com/search/?filterA=&filterB=&filterC=random Problem: Ugly URL Solution: Filter values before submitting form Predicted result: yoursite.com/search/?filterC=random Code: $formSearch.submit(function(event) {