Add support for next and previous links to stay within category

[postmastersteve]

When a visitor is viewing a blog category archives page, clicking in to view a post should cause the individual post "next/prev" links to stay within that blog category.

This can be a per-template option so that control is available in a granular way, assignable with templates/layouts.

This seems to be an example of working code: https://wordpress.stackexchange.com/questions/149826/display-posts-from-the-same-category-using-next-previous-post-link We could make this a conditional option in the Post Pagination Style area, for example:

[postmastersteve]

+1 Jen Lucas ticket 176486