#212 got the POST to the jboss management model working fine for plain JSON data; though for some reason the dmr-encoded format doesn't seem to work when using dmr.js to do the encoding. Not sure why!  To try with dmr use http://localhost:8000/hawtio/#/jboss/dmr?_user=admin&_pwd=welcome123&_format=dmr
 and then for plain json remove the _format query argument which seems to work fine!