Somebody told me to use a reverse proxy to make iframe content relevant for the website embedding it. But I can't get my head around how would that work?
As I understand it, I would need a reverse proxy for every client-website using the iframe, to make the iframe appear to be coming from the client-websites-domain.
But since I only have access to the server delivering the iframe and not the different servers hosting the client-websites, I can't see how that should work. Or am I getting something wrong and it is possible with a proxy in front of the delivering-machine?