A system includes reception of a request from a client for application code to execute in a first Web page, determination that the application code is associated with a first UI framework, change of one or more Uniform Resource Locators of the application code to reference a portal server, change of one or more Uniform Resource Locators of the application code which are associated with the first UI framework to reference a first memory location of the portal server, the first memory location storing a plurality of files of the first UI framework, transmission of the changed application code to the client, and transmission to the client of a script to direct calls associated with the first UI framework to the portal server.