cannot determine the unmarshal function

[n0v3xx]

Hi, i got such debug messages in my log: 2022/10/17 23:29:41.891031 DEBUG [req] cannot determine the unmarshal function with "text/plain;charset=UTF-8" Content-Type, default to json

There is no way to set a default content type for the response or?

But i dont enable debug or dumping. Looks like a bug.