title: How to prevent jquery ajax call firing twice, I am using jquery 2.1.4
body: <p>I have a table with repeated check boxes, when I check the check box, it calls java web service and updates the status for that record; since the AJAX call is made twice, its going to the error section;
   How to avoid making call twice; I tried async: false, did not work; After looking at some sites, tried using e.preventDefault(), adding this makes call once but, the check boxes wouldn't get uncheck and do not disappear; 
  The expected behavior is when check box is checked, make service call and change the status to pending and disappear the checkbox;</p>