jquery ajax post doesnt work but get works

Question

This issue really takes too long to fix and its getting sick...

Yesterday started to appear a really annoying bug which i cant fix its roots to why it happens...

When i use the following javascript code:

$(".reply_to_article").click(function(){
    var cct = $.cookie('csrf_cookie_name');

    var body = $(this).parent().find("textarea");

    $.ajax({
        type: "POST",
        url: "http://www.domain.com/articles/replyToArticle",
        dataType: 'json',
        data: {
            body : body.val(),
            csrf_name : csrf_value
        },
        success: function(data) {

        }
    });
});

and click the reply_to_article button the request simply doesnt end and goes for unlimited time... when i check firebug the loading image always spins without ending... when i press ESC it doesnt return anything... also checked on all other browsers...

Also tried direct-access the ajax file and it works... but this POST doesnt

How can it works with GET but not POST?

which browser did GET work on and also can you show the code for get, do you just change POST to GET? — Baz1nga, Jun 27 '12 at 05:46
it worked on firefox,chrome,safari as im on a mac and yes i changed POST with GET — stergosz, Jun 27 '12 at 05:46
Are you trying to communicate with another domain or is this on the same site? if you control the site can you post your server side code? — Baz1nga, Jun 27 '12 at 05:47
Is it a server-side problem? Does the server not respond to POST requests properly? Try using something like RESTClient in Firefox to see how the server responds to various requests. — David, Jun 27 '12 at 05:48
@Baz1nga no its the same site... it was working before 2 days but now its not... and i cant find the reason — stergosz, Jun 27 '12 at 05:48
@David Some requests work but others dont... also some requests work on some pages and others not... this is another weird thing that happens... — stergosz, Jun 27 '12 at 05:49
You could try using $.POST and see if that works. You can also delete your success function. — Robert, Jun 27 '12 at 06:05
sounds like a cross domain issue. Can you try making the path relative to root ex: /foo/bar rather than http://www.xyx.com/foo/bar? — John Culviner, Jun 27 '12 at 06:07
@Robert will try the $.POST, i have stuff in the success function so its needed — stergosz, Jun 27 '12 at 06:09
@JohnCulviner i have other requests that work as they are now and my above js code was working the past days/months how its that the problem now? — stergosz, Jun 27 '12 at 06:10
@fxuer... All the other people are talking about all this complicated things. But sometimes...I just find the .ajax too much writing and simplify it with .post. Then it miraculously works. Probably a type originally haha. — Robert, Jun 27 '12 at 06:19
@Robert just tried it... as i guessed i dont get a response back and the loading picture on firebug keeps spinning — stergosz, Jun 27 '12 at 06:24
@Robert $.POST internally calls $.ajax i.e its nothing but a wrapper around $.ajax — Baz1nga, Jun 27 '12 at 06:26
@Baz1nga I know that but I was just ruling out the small factor that OP might have a little typo somewhere. — Robert, Jun 27 '12 at 06:41
it seems that it works on Safari but not on firefox,chrome... — stergosz, Jun 27 '12 at 08:31

score 0 · Answer 1 · edited May 23 '17 at 10:09

I am guessing you have CSRF security on and you are "POST"ing data to the controller. The controller in this case calls the Security constructor which checks & verifies the CSRF token. If the token is not correct, then it returns a 500 HTTP error. Thus first check for 500 error. if thats the case I am guessing the way you are handling csrf token is incorrect currently.

I am not sure what csrf_name and csrf_value is but it should be

The name should be: <?php echo $this->security->get_csrf_token_name();?> and the value should be <?php echo $this->security->get_csrf_hash(); ?>

store both these values in a hidden field and then use it in your script.

Read this SO question for details: codeigniter csrf protection error with ajax

Why i cant see that i get a 500 Error? also no errors on error_log? I use the correct csrf token name and value so there isnt a problem there as well... — stergosz, Jun 27 '12 at 06:15

jquery ajax post doesnt work but get works

1 Answers1