The Optimizely Content Management System (CMS) extension of the `IFrameComponent
` has the following additional parameters:
`
UrlFromUtil
` – Optional. The URL to the source, relative the Utils folder. Used instead of `Url
` property.`
UrlFromUi
` – Optional. The URL to the source, relative the UI folder. Used instead of `Url
` property.
### Create MVC component
First you need to add a `Controller
` which has to be annotated with an `IframeComponent
` attribute.

Then add a _Index.cshtml_ view to the _Views/HelloWorld_ directory: