[modeshape-5.3.0.Final] "Forbidden" access to http://localhost:8080/modeshape-webdav

Configuring the (post 4.0), "user and roles". as described in https://docs.jboss.org/author/display/MODE50/Installing+ModeShape+into+Wildfly does not provide access to the
modeshape-webdav and modeshape-rest pages as described in the doc.

I've installed modeshape-5.3.0.Final-jboss-wf-dist.zip in my wildfly-10.1.0.Final bld.
I followed the directions here Installing ModeShape into Wildfly - ModeShape 5 - Project Documentation Editor
I start the standalone version, "./bin/standalone.sh -c standalone-modeshape.xml"
I go to page http://localhost:8080/modeshape-rest I'm prompted for the admin credential,
which I provide (i.e. admin admin). I get page "Forbidden". Same msg for http://localhost:8080/modeshape-webdav

When I revert to using the pre4.0 modeshape-roles.properties, modeshape-users.properties and the
corresponding security-domain conf these URLs work. But I would prefer to use the 5.3.0 default conf.