Citrix Share File returns a browser error when trying to use the "Preview" function.

Error Messages on browser's dev. console:

This is caused by Share File not being entirely compatible with our SSL Interception technology.

Add the following URLs to SSL Interception Exemptions:
(portal.threatpulse.com > Service > SSL Interception > Exemptions > Destinations).

sharefile.com
sf-api.com
sharefile.eu
sf-api.eu
citrixdata.com
securevdr.com
sharefileftp.com
sharefile-webdav.com
sharefileconnect.com
sf-event.com
sf-cv.sharefile.com
sf-rendering.sharefile.com
sf-cdn.net
sf-cv.sharefile.eu

Note that you can save these URLs on a Notepad to import them as a URL list.

Citrix Knowledge Base article: https://support.citrix.com/article/CTX208318