gep13/VBForums-Viewer — comment on commit f42e17628493981a5b2f147264260a3108e7fec3
File:  line 0
By deanvmc:

I think you would have to have it like so:

Navigate -> Get to Next Page -> Purge

so _navService.PurgeAllBackstackPages();
or _navService.PurgeBackstackPage(PageName);