After building Hawtio 1.4.27 from source, and running "mvn clean jetty:run" as per the instructions at http://hawt.io/building/ I am connecting to a remote Tomcat server, which includes jolokia. A new tab opens but with a blank page. If you "view source" it looks like it's all there but nothing appears.
EDIT: In the browser Console I just noticed two errors on the blank page:
[Window] Uncaught TypeError: Cannot convert object to primitive value (<a href="localhost:8282/hawtio/lib/…) loggingInit.js:57 consoleLogger loggingInit.js:57
Failed to load resource: the server responded with a status of 404 (Not Found) localhost:8282/hawtio/welcome?con=local%20tomcat
Also, I installed the latest (1.4.4) Chrome plugin with the latest Chrome (38.0.2125.104) and it doesn't seem to work at all. When you press Connect nothing happens.
Just ran into this issue myself and fixed it, any chance you could try the current master branch and see if that helps? If not please raise an issue on our issue tracker, thanks!