Can't Read Json Response From Server

I am working on a web app that sends some data to a website. The website updates the data to its database and returns a json array that replaces my webapp page. I am using ajax for

Solution 1:

The only known workaround is to let the browser think there is only one origin. The easiest is to put a proxy on your own server relaying to the other server. If your own server is in Apache, you may use mod_proxy (see this question).

But note that if the other server doesn't allow cross-origin requests, it's probably against its policy to do that. And if it's a big server, it may very well detect it and ban your server's IP.