What are the limitations of using Ajax requests for HTTP header redirection in PHP?

When using Ajax requests for HTTP header redirection in PHP, the redirection will not work as expected because the browser does not follow the redirect received in the response headers. To solve this issue, you can handle the redirection on the client-side using JavaScript after receiving a successful response from the Ajax request. 

<?php
// Check if the request is an Ajax request
if(!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
    // Process the request
    // Send a successful response
    echo json_encode(['success' => true, 'redirect_url' => 'new_page.php']);
    exit;
} else {
    // Handle the request normally
    header('Location: new_page.php');
    exit;
}
?>

Keywords

Ajax HTTP header redirection limitations PHP error types

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