Hi Jose, I am not sure if can really can control the jetty server. The platform comes as a service....
I have hacked something straight into the compiled jetty server before in the Mendix directory. C:\Program Files (x86)\Mendix\5.3.2\runtime\bundles\org.eclipse.jetty.http-8.1.10\org\eclipse\jetty\http\mime.properties
This was only for local testing purposes in the modeler and the solution can not transferred into production. For that I need Mendix.....
It would be interesting to see see if there is another way.
Cheers Andries