Imagine a page where users can enter an url. When they submit it the server will download the entered url, cache it, slightly modify it and serve it to the user. What if the user entered an url of a site which contained illegal things like copyrighted content or maybe even worse things like child pornography?
Am I liable because I am serving it? Is the user liable, because he requested? Are we both liable?
The owner of the website can't really check every entered url, so I would say it's fine because it's just redirected, not distributed or stored permanently. Could you clarify that?
I already found one post here which is about copyrighted content, however in this case it goes a bit deeper, because theoretically you could access everything that's illegal trough it, not just listen to music.