Retrieves the URL of the common directory.
Multiple content servers can share resources from one content server installation. This variable defines the URL path to the DomainHome/ucm/cs/common/ directory of the content server whose resources are being shared. For example, the HttpCommonRoot defines the prefix to use for accessing the shared common directory where Web applets are located.
Returns the relative URL as a string. If the URL is external, the complete URL is returned rather than the relative path.
Returned for a Content Server: