Set cross domain in Codeigniter

Question

When I start a hosting project, do it fine.

when I test another project that gives me an error, or I could not get a response from the services. I try a lot, but it doesn’t work

my Ajax call:

self.ValidLogin = function () {
         try {
            $.ajax({
                type: "GET",
                url: "http://xxx.xxx.xxx.xxx/TEST/index.php/TestController/TestMethod?UserName=superadmin&Password=super",
                ,
                crossDomain: true,
                contentType: "application/json; charset=utf-8",
                async: false,
                dataType: 'json',
                cache: false,
                success: function (response) {
                    alert("valid response");
                },
                error: function (ErrorResponse) {
                    alert("error");
                }

            });
        }
        catch (error) {
            alert("Catch:" + error);
        }
    }

Service sector:

public function TestMethod()
    {
        parse_str($_SERVER['QUERY_STRING'],$_GET);
        $UserName = $_GET['UserName'];
        $Password = $_GET['Password'];

        $this->load->model('LoginModel');
        $result = $this->LoginModel->Login($UserName,$Password);

        header('Content-type: application/json');
        header('Access-Control-Allow-Origin: *');
        echo json_encode($result);

    }

what should I do?

Answer 1

After Long Rnd got a decision

self.ValidLogin= function () {
        try {
            $.ajax({
                type: "GET",
                url: "http://xxx.xxx.xxx.xxx/TEST/index.php/TestController/TestMethod?UserName=superadmin&Password=super",
                crossDomain: true,
                contentType: "application/x-www-form-urlencoded",
                async: false,
                dataType: 'json',
                processData: false,
                cache: false,
                success: function (response) {
                    alert("valid response");
                },
                error: function (ErrorResponse) {
                    alert("error");
                }
            });
        }
        catch (error) {
        }
    }

Answer 2

step

header('Access-Control-Allow-Origin:*');

up

Answer 3

:

function __construct() {
        parent::__construct();
        $this->output->set_header('Access-Control-Allow-Origin: *');
}

And it works! But not for all pages. I am still looking for a solution for all content. I assume that this config should be at startup or something like that.