Gets or sets which IE kernel will be used to render the page in Preview mode.
object.BrowserEmulation[=Setting]
Enumerated
The following settings are available:
| Constant | Value | Description |
| Default | 0 | The page is rendered in IE7 mode. |
| IE8 | 1 | IE8 |
| IE9 | 2 | IE9 |
| IE10 | 3 | IE10 |
| IE11 | 4 | IE11 |
| Edge | 5 | The page is rendered in the highest mode. |
By default, the preview browser works in IE7 compatibility mode which does not allow to play YouTube video. If you want to enable playing YouTube videos in Preview mode, then you should set the BrowserEmulation property to IE10 or higher.