Ah, that. Okay. I'd always merge into the record, because I'm aware of that. Maybe that's not obvious to others.

is there a way to set the content-length of a response?

I’ve tried adding it as a header to the response but it doesn’t seem to come through when I curl -v it

@peterwestmacott do you mean no content-length is set at all, or a different one is set?

I think Yada tries to set the content-length for you

Yes. This is puzzling. You can set content length. Can you send your resource code @peterwestmacott?