Jsonp request with SSL redirect in success callback

There is a bug in the jquery ajax jsonp request on success when doing a redirect from http to https. The error happens on this line.

window[ jsonp ] = undefined;

I am making a https ajax call and doing a redirect in the success page with http.

window.location = window.location.toString().replace('https://', 'http://') + '?success';

The jquery success method finishes up, but still tries to finish by trying to access the window in the dom, but can't because it was originally from an https page, and now its on a http page.