AJAX problem? - refreshed url show post values from AJAX call?

Hi,

I'm using a bootstrap modal form (displayed when user clicks a button)  to allow the user to enter some data then submit it via an ajax call to a CI controller. Then I want the CI controller that receives the AJAX request to (for now - still testing) simply refresh the page which allowed the user to fill in the modal form.

A strange thing is happening though ... the url for the page BEFORE the user clicks to open the modal form OR clicks to submit the AJAX update looks like this:

www.mysite.com/index.php/staff/index

after the AJAX call is submitted to the controller the url looks like this:
www.mysite.com/index.php/staff/index?addeventstaffdropdown=3&typeid=7&fromDate=2015-09-28&numdays=11&notes=notes

anyone know why the post variables from the AJAX call are appearing in the refreshed url?

Here's the JQuery code that does the AJAX submit:

PHP Code:

$('#addeventbutton').click(function () 
 {
 var staffid = $("#addeventstaffdropdown").val();
 var typeid = $("#typeid").val();
 var fromdate = $("#fromDate").val();
 var halforfull = $("#halforfull").val();
 var numdays = $("#numdays").val();
 var satandsun = $("#satandsun").val(); 
 var notes = $("#notes").val(); 
 if (staffid == 0 || typeid  == 0 || fromdate.length < 1 )
 {
 alert ('Please select a Staff member, select a Type and enter something in the From Date');
 } 
 var url=site_url+'/events/add_event_ajax/';
 var postData = {
       'staffid' : staffid,
       'typeid' : typeid,
       'fromdate' : fromdate,
       'halforfull' : halforfull,
       'numdays' : numdays,
       'satandsun' : satandsun,
       'notes' : notes
     }; 
 $.ajax(
 {
 type: 'POST',
 url: url,
 data : postData,
 success: function(response)
 {

 } 
 }); 
    }); 


and heres the simple controller to redirect and refresh the 'current' page:

PHP Code:

public function add_event_ajax()
 {
 redirect('staff/index', 'refresh'); 
 } 


Thanks for looking.

Have you tried leaving out the second argument in redirect(), or changing it to 'location'?

Bonfire

Practical CodeIgniter 3
CodeIgniter Testing Guide

Have you tried leaving out the second argument in redirect(), or changing it to 'location'?

Yes, tried both but they get the same result.