Renders the body of the tag if the user has one of the gear-relative roles indicated by the comma-separated list specified by the roles attribute. A role test can be negated by prepending the role name with an exclamation point (!).
Body: JSP content
Attributes
| Attribute | Description | Required? | 
|---|---|---|
| roles | 
 | true | 
| barrier | 
 | false | 

