Custom URL scheme – paramters on custom post type

Try rewrite endpoints:

function wpse_143634_endpoint() {
    add_rewrite_endpoint( 'info', EP_PERMALINK );
}

add_action( 'init', 'wpse_143634_endpoint' );

Now you’ll find you can visit any post and tack on info/whatever to the URL – WordPress will still load the post, except now you’ll have get_query_var( 'info' ) == 'whatever'.

Further reading: https://make.wordpress.org/plugins/2012/06/07/rewrite-endpoints-api/

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