We should now have a high-level understanding that the web script framework in Alfresco supports JavaScript-backed web scripts and uses the RhinoScript processor to execute JavaScript-backed web scripts. In the out-of-the-box web script framework implementation as provided in spring-webscripts-*.jar, the script processor implementation is org.springframework.extensions.webscripts.processor.JSScriptProcessor and is registered with the script processor registry. However, in Alfresco, there is an extended implementation to register the script processor with the web script processor registry in the web script framework in Alfresco. Let's try to understand how the JavaScript processor is configured with the web script framework in Alfresco. If you take a look at web-scripts-application-context.xml under tomcat\webapps\alfresco\WEB-INF\classes\alfresco inside your Alfresco-installed directory, there is a bean entry for the org.springframework.extensions.webscripts...