Review endpoint response handling, ensure that specific/appropriate content type is set

[atc0005]

The application may be unintentionally relying upon automatic detection behavior by the built-in http server. Based on what I've recently heard/read this is not best practice and can lead to various problems.

In our case it's probably not a critical issue as we're only returning status codes and some error text strings (which the built-in http server set as text/plain content type), but it's worth handling in a proper manner.