I don't know if this is possible, and I'm sure i'm not calling it the right thing, but how can I pass a url with get parameter inside a get parameter itself? For example, I want to pass http://example.com/return/?somevars=anothervar as a value for the "return" parameter as show below:
http://example.com/?param1=4&return=http://example.com/return/?somevars=anothervar