Controller only returns decoded words

if i call a function that just returns the DataResponse(‘hello’),
I get this:
Does anyone know the problem, because the last time i checked,
the controller returned the right values and now it doesn’t :frowning:

what webserver server do you use?

Microsoft Edge, but a few weeks ago it worked fine in Edge.
Also controllers of other apps of mine show me the right output.

I also see the right output if I echo it, but if I return a DataResponse it lools like this

Can anyone help me please