And the headers were ok - they were identical to the psgi-version.

The problem (as I mentioned in another post) seems to be that while a plain psgi-app returns happily whatever you give it, Dancer seems to be a little cleverer which in this case gets in my way.

I need to explicitly decode the string as utf-8 to keep Dancer from encoding it again then it works.

I would be very interesting to learn if this is the proper way to do this though...