fix login maybe?

public/src/client/login.js

@@ -53,7 +53,7 @@ define('forum/login', ['csrf'], function(csrf) {
 			var returnToEl = document.createElement('input');
 			returnToEl.type = 'hidden';
 			returnToEl.name = 'returnTo';
-			returnToEl.value = app.previousUrl.replace(window.location.origin + RELATIVE_PATH, '');
+			returnToEl.value = app.previousUrl;
 			$(returnToEl).appendTo(formEl);
 		}
 	};

src/routes/authentication.js

@@ -183,10 +183,11 @@
 				if (!req.session.returnTo) {
 					res.status(200).send(nconf.get('relative_path') + '/');
 				} else {
+
 					var next = req.session.returnTo;
 					delete req.session.returnTo;
 
-					res.status(200).send(nconf.get('relative_path') + next);
+					res.status(200).send(next);
 				}
 			});
 		})(req, res, next);