The “Run an Application” document describes that my server application must listen to 0.0.0.0 ($IP) and 8080 ($PORT), 8081 or 8082, then gives a reference URI as http://-.c9users.io.
Is the HTTP protocol enforced?
Specifically, I hope to host a small MQTT server in c9. I am happy to use one of these ports but obviously this would use the MQTT protocol, not HTTP. Would this work?