At the moment, I'm saving the previousUrl in the Redux Store under a new "prevoiusUrl" location. I've added this in the AppReducer and it's working the majority of the time. The scenario where it doesn't work is if you're on an individual post and refresh the page. Then the entire page state is refreshed and the previousUrl disappears. Presumably, this is where the setRouteTag differs as the SagaShared.js file intercepts the request and sends it to the ServerAPIClient to store it in a database.

I looked to see if I could piggyback on the recordRouteTag function with an additional paramater but the ServerAPIClient only sends specific paramaters so there's no generic "custom_json" style storage available.

I hope I'm making sense and sorry if I've missed an important detail in your reply 🙂

I'm looking forward to seeing (and testing?) your bookmarks implementation. Have you implemented it so that you can see other people's bookmarks or only your own? (Just thinking about slotting it into the navigation.)