## How it works
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.
### Creating MVC component
First you need to add a controller. Controller has to be annotated with an `
Then add a _Index.cshtml_ view to the Views/HelloWorld directory: