SAP Document center and FIORI app Integration

I have integrated the SAP Document center app in a custom FIORI app. The app is developed in WebIDE and is deployed in the portal service launch pad. It works fine in the desktop browser and mobile browser. As a next step I had configured this launch pad in a FIORI client but in this case, it throughs out " Forbidden 403" error. In the same mobile, I was able to access via a browser.

I am I missing something for the FIORI client?