Add a prefix for nopaque's data within the application context

app/users/settings/routes.py

@@ -23,7 +23,7 @@ def settings(user_id):
         abort(403)
 
     redirect_location_on_post = g.pop(
-        'redirect_location_on_post',
+        '_nopaque_redirect_location_on_post',
         url_for('.settings', user_id=user_id)
     )