Problem redirecting to login page if user session has expired while making ajax calls

Hi, my website checks if the user is logged in each time a page is loaded by checking a cookie which is placed.

My problem occurs when i make ajax calls to functions in the framework when the cookie has expired. The code that would usually redirect to the login page:

header(‘Location: /login’);

won’t work, i think because there is already html written to the page (i get a 302 error).

Is there anyway to be able to

try{header(‘Location: /login’);}

and then if that fails, just write a js <script>window.location=’/login’;</script> ??

Any help would be much appreciated.

Also in #PHP _↴