Jquery $post JSON question

[StealthRT]

I am unsure as to what may be causing my problem 404 Not Found error. i know the path is there because when i go to the URL i get this error:

    {"error":"invalid_order"}

And this is the javascript code thats calling json:

    $.post("<?php echo str_ireplace("http://", "https://", URL_P);?>c/gateway",
			{
				unique_id:$("#order_id").val(),
				name_card:$("#name_card").val(),
				card_num:$("#card_num").val(),
				ex_date:$("#ex_date").val(),
				cvv:$("#cvv").val()	
			},
			function(data) {
				if (data && data != null && data["success"] != null && data["orderid"]) {
					processSuccess(data["orderid"]);
				} else if (data && data != null && data["error"] != null) {
					processError(data["error"]);
				} else {
					processError('unknown');
				}
				processing = false;
			},
			"json"
	);

Does anyone see an error in the $post? Is the json $post formed correctly?

Thanks.

[CoursesWeb]

Hi
Seem the problem is in the way you use jQuery $.post .
Here is the syntax for this Ajax method:

$.post('script.php', data_to_send, function(response){
  $('#dv').html(response);      // adds the server response in element with id="dv"
});