How to allow access only from a specific Apache redirect?

Question

Apache HTTP Server

I have a web application that redirects to the same domain but to a different port. Apache is on that port. I want to restrict access only by redirect from my domain. In short, from example.com (here React redirects) to example.com:1000(apache). Apache should check if HTTP_REFERER contains example.com, then it skips. I tried to use RewriteCond, but something doesn't work for me.