Enabling the Use of Images from URLs 
When creating a module template, you can attach a custom icon to it. To enable using images from URLs, it is necessary to configure a proxy for accessing the Internet.
Internet access is available for end users of enterprise workspaces.
In the portal, navigate to .
In the Portal Catalog, choose .
In the context menu of proxy, select Configure.
Configure the following properties:
HTTP – Bypass Proxy Servers
For example: *.abc.mycompany.com
HTTP – Enable Proxy setting
Set to true
HTTP Proxy Host
For example: proxy
HTTP Proxy Port
For example: 8080
Save your changes.
In the context menu of the com.sap.portal.ivs.httpservice application, select Administrate.
It may take the editor several seconds to display.
From the list of services, restart the proxy service.