how to stop this code from executing the redirect

I need to prevent the program from executing the redirect so I can see the sensitive information


<?php 
        $redirect_url = 'page2.php';
        header("Location: " . $redirect_url); 
?>

<div id="demo">This is sensitive information</div>

I expect the code to remain at the same page without redirecting to page2

I want to do it using the terminal or an external command supposing that I don't control the site.

Solution

You can use curl which does not follow redirects by default.

curl mysite.com