SRM Shopping Cart UI5 iView loading forever

Hi Guys,

               I create SRM Shopping cart UI5 iView in Portal. Here is the link I followed.

Creating SAPUI5 iViews - Portal - SAP Library

I have OData services setup in SPRO and the Gateway services are activated in SICF.

I can run shopping cart directly from BSP application.

But when I run UI5 iView from portal, its loading forever.

anyone come across this issue..?

Thanks

Sam