Unable to load UI5 URL in webgui

I built a Gui Dynpro application same as per below post where I am trying to load a UI5 url into GUI Dynpro. This is working perfectly fine when I try to load in SAPGUI. But when I am accessing using webgui, UI5 is not loading. Any idea what could be the issue?

http://scn.sap.com/docs/DOC-65636

Thank you,

Baba