Webdynpro iview cannot be viewed in https.

Hi Guys,

I have created a webdynpro iview, but when i preview it, it displays the application for 2 seconds and then suddenly it shows error has

" Page not found. Refresh the page or try again later. If the problem persists, contact your Portal administrator for assistance. " But when  i change the url from https to http, it is working fine. What should I do, to get it in https.

Regards

Madhu N G