Have you tried removing the following line from the Undertow subsystem configuration in your standalone.xml?
<response-header name="x-powered-by-header" header-name="X-Powered-By" header-value="Undertow/1"/>
in undertow subsystem remove
from default-host configuration
Thank you Tomaz.
Could this be configurable in future releases?
Well, what else is that?
whole standalone.xml is configuration.
you can also configure it via cli or admin console, or even rest api if you want that.
I was merely asking the question of having the option to enable/disable this in the web console as is the option to enable/disable the JSP X-Powered-By is already there. I posted this on the issue.jboss.org site which was rejected. Please excuse my ignorance.