Cannot view SharePoint 2013 WebPart Page in Html iframe

I would like to use html iframe for display sharepoint 2013 webpage page , it return following error :

"This content cannot be displayed in a frame"

Here is my code:

<iframe width="100%" src="http://xxxx-dev-int:6346/Test/SitePages/wpSPFolderControl.aspx"> </iframe>

i try to follow

http://blogs.msdn.com/b/officeapps/archive/2012/12/12/iframing-sharepoint-hosted-pages-in-apps.aspx , but another error message shown

"The Visible property cannot be set on Web Part 'g_5bf75035_be44_437a_8752_6360297f3f13'.  It can only be set on a standalone Web Part."

The webpart page is correct , that can browse directly.

Working environment:

- SharePoint 2013

- Windows Server 2012

- Visual Studio Professional 2012

- .Net framework 3.5

Thanks for your help