da34c3ff6c2398adcbc12a59dd4d316769d0c009 spoils my fixes; as of commit 2c6df9130382c5a7be47ee140ce2875262af3d89 response headers are now always an array.
Concerning "the changed by @rotdrop don't seem to work.": did you check my changes without your commit da34c3ff6c2398adcbc12a59dd4d316769d0c009 ? Also: does the stuff work for you (without my latest commit)? I would be very very surprised if this would be the case.