You can configure the Web Client system to allow you to download files from a non-secure server site by adding a domain name entry in the ProxyDomains setting of the SDAClientServices web.config file. For example, located at: [Drive]:\SmartPlant Foundation Server Files\SPFWebClient_Sites\[SPFWebClient_Site_Name]\SDAClientServices.
Add the domain name of each of the non-secure hosts to which you require access. Each non-secure host entry must be separated by a semicolon.
The following example adds the domain entry sharepoint.hexagon.com to allow the download of document files from that location:
<appSettings>
<add key="ClientServicesSafeFileDirectory" value="C:\Products\SPFScannedFileDir"/>
<add key="TargetVirtualDir" value="SDAClient"/>
<add key="ImagesDir" value="src\content\images"/>
<add key="ProxyDomains" value="sharedserver.hexagon.com;sharepoint.hexagon.com"/>
</appSettings>