What kind of file are you uploading as a deployment? Can you attach a screenshot of what you are seeing? Also, there's a 17.0.0.Final has been released Downloads · WildFly , can you see if it's reproducible on that one?
I try too upload *.war file.
Problem resolved. I tryed deploy from jboss-cli, apllication deploed ok. Then i try open wildfly console in anouther browser.
Error about content it error browser.