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/ 8 Years ago, fri, february 5, 2016, 12:00:00
I am trying to make a login page from cross domain but I couldn't solve the problem, the error is:
XMLHttpRequest cannot load http://localhost/testing/resp.php. Request header field Access-Control-Allow-Headers is not allowed by Access-Control-Allow-Headers in preflight response.
My Javascript code is:
$('#login').click(function(){
var username = $('#uname').val();
var password = $('#pass').val();
var result = $('.result');
result.text('loading....');
if (username != '' && password !=''){
var urltopass = 'action=login&username='+username+'&password='+password;
$.ajax({
type: 'POST',
data: urltopass,
headers: {Access-Control-Allow-Headers: Content-Type},
url: 'http://localhost/testing/resp.php',
crossDomain: true,
cache: false,
success: function(responseText){
console.log(responseText);
if(responseText== 0){
result.text('incorrect login information');
} else if (responseText == 1){
window.location=http://localhost/testing/home.php;
} else{
alert('error in sql query n' + responseText);
}
}
});
} else return false;
});The PHP code for http://localhost/testing/resp.php :
<?php
include db.php; //Connecting to database
if (!isset($_SERVER['HTTP_ORIGIN'])) {
echo This is not cross-domain request;
exit;
}
header(Access-Control-Allow-Origin: *);
header(Access-Control-Allow-Credentials: true);
header(Access-Control-Allow-Methods: POST, GET, OPTIONS);
header(Access-Control-Allow-Headers: Content-Type, Authorization, X-Requested-With);
header('P3P: CP=CAO PSA OUR'); // Makes IE to support cookies
header(Content-Type: application/json; charset=utf-8);
if (isset($_POST['action']) && $_POST['action'] == 'login'){
$uname = $_POST['username'];
$pass = $_POST['password'];
$sql = SELECT * FROM loginajax WHERE username='$uname' AND password='$pass';
$rs=$conn->query($sql);
if (mysqli_num_rows($rs) <= 0){
echo 0;
} else {
echo 1;
}
} else echo this is not Login;
?>
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