Embedded images (Images that copied and pasted in the Workspace Activity stream) are not displayed for the customer in the customer portalDescriptionWhen an agent copies and pastes an image in the activity stream of the CSM workspace, the image is not visible to the customer who accesses the Case via the CSM portal Steps to Reproduce 1. Create a new case in CSM workspace2. Populate the "Contact" with an external customer, e.g. Amy Chen3. Save the Case4. In the CSM workspace, copy and paste an image into the activity stream5. Save the Case6. Note the sys_id of the Case7. Impersonate Amy Chen8. Open the browser's developer tool and make sure "Disable Cache" is checked9. Open the CSM portal ticket page:-i.e. /csm?id=csm_ticket&table=sn_customerservice_case&sys_id=<SYS_ID_OF_THE_CASE>10. Observe the image is broken and the request of the image returns 403 forbidden errorWorkaround1. Open the OOB sys_attachment ACL (Sys ID: d96a859a43333110281ee8625ab8f284) 2. Add "snc_external" role in the condition Related Problem: PRB1781721