I know setting the MIME type returned is supposed to be super easy but I can't seem to get it to work. I am working with fillable PDFs so I need to return data as "application/vnd.fdf". The code I have is:

my $Format = 'vnd.fdf';
if (!app->types->type($Format)) {
     app->types->type($Format => ["application/$Format"]);
}
$c->render(status => $Status, format => $Format, data => $Content);

It is kind of a black box because the request is coming from and being handled by Acrobat Reader when viewing a PDF, but it was working correctly when I was using stock plack and it is not since I switched to mojolicious. Instead of my custom message Acrobat is generating a stock message that the submission "succeeded" (that is not helpful because it actually may fail validation) which I guess means the status is being returned at least. Is there any way to bypass the super easy method and "hard code" the mime type?

Any help would be greatly appreciated.