Root URL for relative image URLs. Specifies the root URL for relative image URLs. attribute::RootUrl is used instead of attribute::RootPath when a src= value is enclosed by .
Text string value. Absolute URL root path, including the leading protocol identifier. The following protocols are supported: HTTP, HTTPS, and FTP.
Inherited from default::RootUrl if not defined. If defined but empty, relative URLs are not supported by this material catalog.