So eventyally in my case, I don’t know why , but I just deleted Content-type header with the value from the response, and all is ok. My answer was found here Android Volley gives me 400 error solved HTTPS Volley Invalid header issue
Not exactly mine but just so people can clearly see for future learning and reference, I have subsequently received this answer from a member of the cod_ae_cademy pro team named Elise (:~)): “in this case it seems like [the codaecademy engineers] have a security setting to require that script [be called in directly from codaecademy]” … Read more
I just solved the issue.The problem was that mosquitto was not capable of reading the files not because of permission issues but because of the filepaths. So the thing was that when defining the filepaths in the mosquitto.conf I had to use: cafile /etc/mosquitto/ca_certificates/ca.crt certfile /etc/mosquitto/certs/server.crt keyfile /etc/mosquitto/certs/server.key Instead of: cafile c:\etc\mosquitto\ca_certificates\ca.crt certfile c:\etc\mosquitto\certs\server.crt keyfile … Read more