Proxy a URL received via GET-parameter

Hi guys!

I want nginx to serve (proxy) a URL, that i would deliver as a
GET-parameter. For example a request could look like this:

and nginx now should try to fetch
from the parameter “URL” and deliver it to the client.
I need this to deliver some files via SSL that are only available
without it.

Is such a setup possible?

Thank you very much in advance for you help!

Kind regards from Germany!

Posted at Nginx Forum: