Cross Domain From Javascript to PHP

Question

I have to make a request from javascript that is on server A, to a php file that is on server B. I can access both servers.

But something is getting wrong. I always get ready state 0, status 0.

This is the latest thing I tried: Please advice what I'm doing wrong. thanks.

Server A:

$.ajax({
    type: "GET",
    url: 'http://server_B/request.php',
    data: form_data,
    dataType: 'json',
    success: function (resp) {
        alert("Successful");
        console.log("Response completed");
        console.log("resp is" + resp);
    },
    error: function (xhr, error) {
        console.log("readyState: " + xhr.readyState + "\nstatus: " + xhr.status);
        console.log("responseText: " + xhr.responseText);
        alert("Error occurred.");
    }
});

Server B: request.php

<?php
    header('Content-Type: application/json');
    header('Access-Control-Allow-Origin: '.$_SERVER['HTTP_ORIGIN']);
    header('Access-Control-Allow-Methods: GET, PUT, POST, DELETE, OPTIONS');
    header('Access-Control-Max-Age: 1000');
    header('Access-Control-Allow-Headers: Content-Type, Authorization, X-Requested-With');

    # do the work and save it on $result array.
    print json_encode($result,true);
?>

I'm not familiar with jsnop, and I don't get any result on console so to understand what is happening.. — little star
– little star, Commented May 8, 2014 at 16:55
in your ajax call, use dataType: 'jsonp' - learn about JSONP — Pedro Estrada
– Pedro Estrada, Commented May 8, 2014 at 16:56
Do you get a SecurityError from the XMLHttpRequest logged in your console? Does it work if you allow *? — Paul S.
– Paul S., Commented May 8, 2014 at 16:58
What are you seeing in the console? What specific request is being sent? Is it an OPTIONS, or a GET? — Ray Nicholus
– Ray Nicholus, Commented May 8, 2014 at 17:05
You should have an error in your javascript console. In Chrome (and maybe others, but Chrome for sure), it will tell you exactly what the problem was. — Jason P
– Jason P, Commented May 8, 2014 at 17:08

Community · Accepted Answer · 2017-05-23 12:28:36Z

-1

To use ajax between two different domains you will have to use jsonp

You can find more help in here

edited May 23, 2017 at 12:28

CommunityBot

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answered May 8, 2014 at 17:03

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2 Comments

Pedro Estrada Over a year ago

This would be better suited as a comment. But, to each his own

Jason P Over a year ago

"you will have to use jsonp" - No, you can also use CORS, which is what the OP is attempting to do.

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