Hey all, Usually in instances like this, I assume I am doing something wrong and am curious to know what it is... I would expect to be able to return any instance which implements TO_JSON directly from my route handler and have the JSON serializer (configured with convert_blessed => 1) pull its data from that method. This test app demonstrates what I am doing, I think. Visiting '/' gives me (pretty, demonstrating the config is read) JSON output. Visiting '/object' results in: Route exception: Unrecognized response type from route: AnObject. in ....perl5/lib/perl5/Return/MultiLevel.pm l. 97 package JsonTest; use Dancer2; set engines => { serializer => { JSON => { convert_blessed => 1, pretty => 1, } } }; set serializer => 'JSON'; get '/' => sub { { key => 'value', 'key2' => 'value2' }; }; get '/object' => sub { AnObject->new; }; package AnObject { use Moo; sub TO_JSON { { is => ref shift }; } } 1; I can, of course, call to_json/from_json with the appropriate options / headers myself (this works), but would like to take advantage of the convenience of the serializer. Thanks!