如何使用jQuery的$ .post函数获取“location”标头？

I'm trying to create a pop up box (with jQuery) that can handle forms, and for the most part, I have it all working. The only issue that I have is that on a successful login and/or register, PHP sends a header location to redirect to the user to their "home", and it creates an endless loop of redirects with in the div that I loaded the form.I'm trying to create a pop up box (with jQuery)