Your endpoint is only applied to posts, add EP_PAGES
to generate rules for page post type-
add_rewrite_endpoint( 'amp', EP_PERMALINK | EP_PAGES );
That should also be within a function hooked to init
.
Your endpoint is only applied to posts, add EP_PAGES
to generate rules for page post type-
add_rewrite_endpoint( 'amp', EP_PERMALINK | EP_PAGES );
That should also be within a function hooked to init
.