Many thanks for your input - this is now working perfectly. For the
benefit of the archives:
- In the server, where the session expiry is detected, I check for
XMLHttpRequest ("request.xhr?" in Rails)
- If so, I send back a 403 instead of the redirect to the login page
- At the client side, I have an error wrapper which detects the 403
and forces the browser to the login page
function ajax_error(fn) {
return function(res, status, err) {
if (res.status == 403)
location = "/signup/login";
else if (fn)
return fn(res, status, err);
}
}
$.ajax({
...
error: ajax_error( function(res, status, err) {
// other error handling goes here
})
})
Cheers,
Brian.
