[Pharo-users] Using ZnResponse>>#redirect: to pass an error message

Hello I catch an error like this: ``` [ self insertNewUser. ``` ``` ZnResponse redirect: self request url ] on: TbDbError do: [ :err | | ent | ``` ``` ZnResponse redirect: '/error/db_error' ] ]. ``` I would like to pass ``` err messageText ``` to the page at: ‘/error/db_error’, to display to the user. I prefer not to cache it is a session or use a Js hack to do it. Does someone have a strategy for passing objects via a ZnResponse instance? I did try ``` ZnResponse redirect: aUrl entity: anEntity ``` but the entity is discarded by the time it gets to the page. Vince