We recently added in one of our app a navigation menu that points to different section of a publication. We also added the possibility to return to the parent collection with the link navto://relative/parent.
It works great on tablets and mobile phones, but it doesn't seem to work in the Web Viewer version.
Here's an example. The navigation menu is in the top right corner, and the link to exit the publication is called "Quitter" (the last option in the menu).
The navto://relative/parent format isn't supported in web viewer. A tester told me that there is additional complexity in determining the parent in web viewer because web viewer users don't always access the app from the top-level collection.
I suppose my best alternative would be to use goto://FolioNavigation/lastview ?
It will work if it's the first time the menu is used in the folio. However, if the user navigated to another section before from the menu, it will bring them back to an article in the folio instead of the parent collection.